Corruption Perceptions Index table – Nigeria Now 154th out of 180 and Number 14 in Africa !

A study published in 2002 found a “very strong significant correlation” between the Corruption Perceptions Index and two other proxies for corruption: black market activity and an overabundance of regulation

Transparency International commissioned the University of Passau’s Johann Graf Lambsdorff to produce the CPI The 2012 CPI takes into account 16 different surveys and assessments from 12 different institutions.^[8] The 13 surveys/assessments are either business people opinion surveys or performance assessments from a group of analysts.^[3] Early CPIs used public opinion surveys.^[9] The institutions are:

#	Nation or Territory	2021[6]		2020[17]		2019[18]		2018[19]		2017[20]		2016[21]		2015[22]		2014[23]		2013[24]		2012[25]
		Score	Δ	Score	Δ	Score	Δ	Score	Δ	Score	Δ	Score	Δ	Score	Δ	Score	Δ	Score	Δ	Score
1	Denmark	88		88	1	87	1	88		88	2	90	1	91	1	92	1	91	1	90
1	New Zealand	88		88	1	87		87	2	89	1	90	1	91		91		91	1	90
1	Finland	88	3	85	1	86	1	85		85	4	89	1	90	1	89		89	1	90
4	Singapore	85		85		85		85	1	84		84	1	85	1	84	2	86	1	87
4	Sweden	85		85		85		85	1	84	4	88	1	89	2	87	2	89	1	88
4	Norway	85	1	84		84		84	1	85		85	2	87	1	86		86	1	85
7	Switzerland	84	1	85		85		85		85	1	86		86		86	1	85	1	86
8	Netherlands	82		82		82		82		82	1	83	4	87	4	83		83	1	84
10	Germany	80		80		80		80	1	81		81		81	2	79	1	78	1	79
9	Luxembourg	81	1	80		80	1	81	1	82	1	81		81	1	82	2	80		80
18	Australia	73	4	77		77		77		77	2	79		79	1	80	1	81	4	85
13	Canada	74	3	77		77	4	81	1	82		82	1	83	2	81		81	3	84
12	Hong Kong	76	1	77	1	76		76	1	77		77	2	75	1	74	1	75	2	77
11	United Kingdom	78	1	77		77	3	80	2	82	1	81		81	3	78	2	76	2	74
13	Austria	74	2	76	1	77	1	76	1	75		75	1	76	4	72	3	69		69
18	Belgium	73	3	76	1	75		75		75	2	77		77	1	76	1	75		75
13	Estonia	74	1	75	1	74	1	73	2	71	1	70		70	1	69	1	68	4	64
13	Iceland	74	1	75	3	78	2	76	1	77	1	78	1	79		79	1	78	4	82
18	Japan	73	1	74	1	73		73		73	1	72	3	75	1	76	2	74		74
13	Ireland	74	2	72	2	74	1	73	1	74	1	73	2	75	1	74	2	72	3	69
24	United Arab Emirates	69	2	71		71	1	70	1	71	5	66	4	70		70	1	69	1	68
18	Uruguay	73	2	71		71	1	70		70	1	71	3	74	1	73		73	1	72
22	France	71	1	69		69	3	72	2	70	1	69	1	70	1	69	2	71		71
25	Bhutan	68		68		68		68	1	67	2	65		65		65	2	63		63
27	Chile	67		67		67		67		67	1	66	4	70	3	73	2	71	1	72
27	United States	67		67	2	69	2	71	4	75	1	74	2	76	2	74	1	73		73
23	Seychelles	70	4	66		66		66	6	60	5			55		55	1	54	2	52
25	Taiwan	68	2	65		65	2	63		63	2	61	1	62	1	61		61		61
29	Barbados	65	1	64	2	62	6	68		68	7	61				74	1	75	1	76
30	Bahamas	64	1	63	1	64	1	65		65	1	66				71		71		71
31	Qatar	63		63	1	62		62	1	63	2	61	10	71	2	69	1	68		68
32	South Korea	62	1	61	2	59	2	57	3	54	1	53	3	56	1	55		55	1	56
32	Portugal	62	1	61	1	62	2	64	1	63	1	62	1	63		63	1	62	1	63
34	Lithuania	61	1	60		60	1	59		59		59	2	61	3	58	1	57	3	54
34	Spain	61	1	62		62	4	58	1	57	1	58		58	2	60	1	59	6	65
45	Botswana	55	5	60	1	61		61		61	1	60	3	63		63	1	64	1	65
35	Brunei			60		60	3	63	1	62	4	58						60	5	55
36	Israel	59	1	60		60	1	61	1	62	2	64	3	61	1	60	1	61	1	60
41	Slovenia	57	3	60		60		60	1	61		61	1	60	2	58	1	57	4	61
36	Saint Vincent and the Grenadines	59		59		59	1	58		58	2	60				67	5	62		62
39	Cape Verde	58		58		58	1	57	2	55	4	59	4	55	2	57	1	58	2	60
39	Costa Rica	58	1	57	1	56		56	3	59	1	58	3	55	1	54	1	53	1	54
52	Cyprus	53	4	57	1	58	1	59	2	57	2	55	6	61	2	63		63	3	66
36	Latvia	59	2	57	1	56	2	58		58	1	57	2	55		55	2	53	4	49
45	Georgia	55	1	56		56	2	58	2	56	1	57	5	52		52	3	49	3	52
42	Poland	56		56	2	58	2	60		60	2	62		62	1	61	1	60	2	58
42	Saint Lucia	56		56	1	55		55		55	5	60						71		71
45	Dominica	55		55		55	2	57		57	2	59				58		58		58
49	Czech Republic	54		54	2	56	3	59	2	57	2	55	1	56	5	51	3	48	1	49
56	Oman	52	2	54	2	52		52	8	44	1	45		45		45	2	47		47
52	Rwanda	53	1	54	1	53	3	56	1	55	1	54		54	5	49	4	53		53
52	Grenada	53		53		53	1	52		52	4	56
42	Italy	56	3	53		53	1	52	2	50	3	47	3	44	1	43		43	1	42
49	Malta	54	1	53	1	54		54	2	56	1	55	1	56	1	55	1	56	1	57
49	Mauritius	54	1	53	1	52	1	51	1	50	4	54	1	53	1	54	2	52	5	57
52	Saudi Arabia	53		53		53	4	49		49	3	46	6	52	3	49	3	46	2	44
62	Malaysia	48	3	51	2	53	6	47		47	2	49	1	50	2	52	2	50	1	49
58	Namibia	49	2	51	1	52	1	53	2	51	1	52	1	53	4	49	1	48		48
58	Greece	49	1	50	2	48	3	45	3	48	4	44	2	46	3	43	3	40	4	36
58	Armenia	49		49	7	42	7	35		35	2	33	2	35	2	37	1	36	2	34
58	Jordan	49		49	1	48	1	49	1	48		48	5	53	4	49	4	45	3	48
56	Slovakia	52	2	49	1	50		50		50	1	51		51	1	50	3	47	1	46
82	Belarus	41	6	47	2	45	1	44		44	4	40	8	32	1	31	2	29	2	31
63	Croatia	47		47		47	1	48	1	49		49	2	51	3	48		48	2	46
64	Cuba	46	1	47	1	48	1	47		47		47		47	1	46		46	2	48
66	São Tomé and Príncipe	45	2	47	1	46		46		46		46	4	42		42		42		42
64	Montenegro	46	1	45		45		45	1	46	1	45	1	44	2	42	2	44	3	41
73	Senegal	43	2	45		45		45		45		45	1	44	1	43	2	41	5	36
78	Bulgaria	42	2	44	1	43	1	42	1	43	2	41		41	2	43	2	41		41
73	Hungary	43	1	44		44	2	46	1	45	3	48	3	51	3	54		54	1	55
70	Jamaica	44		44	1	43	1	44		44	5	39	2	41	3	38		38		38
66	Romania	45	1	44		44	3	47	1	48		48	2	46	3	43		43	1	44
70	South Africa	44		44		44	1	43		43	2	45	1	44		44	2	42	1	43
70	Tunisia	44		44	1	43		43	1	42	1	41	3	38	2	40	1	41		41
73	Ghana	43		43	2	41		41	1	40	3	43	4	47	1	48	2	46	1	45
85	Maldives	40	3	43	14	29	2	31	2	33	3	36
66	Vanuatu	45	2	43	3	46		46	3	43
96	Argentina	38	4	42	3	45	5	40	1	39	3	36	4	32	2	34		34	1	35
78	Bahrain	42		42		42	6	36		36	7	43	8	51	2	49	1	48	3	51
66	China	45	3	42	1	41	2	39	2	41	1	40	3	37	1	36	4	40	1	39
73	Kuwait	43	1	42	2	40	1	41	2	39	2	41	8	49	5	44	1	43	1	44
73	Solomon Islands	43	1	42		42	2	44	5	39	3	42
78	Benin	42	1	41		41	1	40	1	39	3	36	1	37	2	39	3	36		36
87	Guyana	39	2	41	1	40	3	37	1	38	4	34	5	29	1	30	3	27	1	28
96	Lesotho	38	3	41	1	40	1	41	1	42	3	39	5	44	5	49		49	4	45
78	Burkina Faso	42	2	40		40	1	41	1	42		42	4	38		38		38		38
85	India	40		40	1	41		41	1	40		40	2	38		38	2	36		36
87	Morocco	39	1	40	1	41	2	43	3	40	3	37	1	36	3	39	2	37		37
82	Timor-Leste	41	1	40	2	38	3	35	3	38	3	35	7	28		28	2	30	3	33
82	Trinidad and Tobago	41	1	40		40	1	41		41	6	35	4	39	1	38		38	1	39
96	Turkey	38	2	40	1	39	2	41	1	40	1	41	1	42	3	45	5	50	1	49
87	Colombia	39		39	2	37	1	36	1	37		37		37		37	1	36		36
105	Ecuador	36	3	39	1	38	4	34	2	32	1	31	1	32	1	33	2	35	3	32
96	Brazil	38		38	3	35		35	2	37	3	40	2	38	5	43	1	42	1	43
87	Ethiopia	39	1	38	1	37	3	34	1	35	1	34	1	33		33		33		33
102	Kazakhstan	37	1	38	4	34	3	31		31	2	29	1	28	1	29	3	26	2	28
105	Peru	36	2	38	2	36	1	35	2	37	2	35	1	36	2	38		38		38
96	Serbia	38		38	1	39		39	2	41	1	42	2	40	1	41	1	42	3	39
102	Sri Lanka	37	1	38		38		38		38	2	36	1	37	1	38	1	37	3	40
87	Suriname	39	1	38	6	44	1	43	2	41	4	45	9	36		36		36	1	37
87	Tanzania	39	1	38	1	37	1	36		36	4	32	2	30	1	31	2	33	2	35
102	Gambia	37		37		37		37	7	30	4	26	2	28	1	29	1	28	6	34
96	Indonesia	38	1	37	3	40	2	38	1	37		37	1	36	2	34	2	32		32
110	Albania	35	1	36	1	35	1	36	2	38	1	39	3	36	3	33	2	31	2	33
117	Algeria	33	3	36	1	35		35	2	33	1	34	2	36		36		36	2	34
105	Ivory Coast	36		36	1	35		35	1	36	2	34	2	32		32	5	27	2	29
115	El Salvador	34	2	36	2	34	1	35	2	33	3	36	3	39		39	1	38		38
87	Kosovo	39	3	36		36	1	37	2	39	3	36	3	33		33		33	1	34
110	Thailand	35	1	36		36		36	1	37	2	35	3	38		38	3	35	2	37
87	Vietnam	39	3	36	1	37	4	33	2	35	2	33	2	31		31		31		31
110	Bosnia and Herzegovina	35		35	1	36	2	38		38	1	39	1	38	1	39	3	42		42
110	Mongolia	35		35		35	2	37	1	36	2	38	1	39		39	1	38	2	36
87	North Macedonia	39	4	35		35	2	37	2	35	2	37	5	42	3	45	1	44	1	43
105	Panama	36	1	35	1	36	1	37		37	1	38	1	39	2	37	2	35	3	38
105	Moldova	36	2	34	2	32	1	33	2	31	1	30	3	33	2	35		35	1	36
117	Philippines	33	1	34		34	2	36	2	34	1	35		35	3	38	2	36	2	34
117	Egypt	33		33	2	35		35	3	32	2	34	2	36	1	37	5	32		32
122	Eswatini	32	1	33	1	34	4	38	1	39	4					43	4	39	2	37
117	Nepal	33		33	1	34	3	31		31	2	29	2	27	2	29	2	31	4	27
115	Sierra Leone	34	1	33		33	3	30		30		30	1	29	2	31	1	30	1	31
122	Ukraine	32	1	33	3	30	2	32	2	30	1	29	2	27	1	26	1	25	1	26
117	Zambia	33		33	1	34	1	35	2	37	1	38		38		38		38	1	37
124	Niger	31	1	32		32	2	34	1	33	2	35	1	34	1	35	1	34	1	33
128	Bolivia	30	1	31		31	2	29	4	33		33	1	34	1	35	1	34		34
128	Kenya	30	1	31	3	28	1	27	1	28	2	26	1	25		25	2	27		27
144	Kyrgyzstan	27	4	31	1	30	1	29		29	1	28		28	1	27	3	24		24
124	Mexico	31		31	2	29	1	28	1	29	1	30	5	35		35	1	34		34
140	Pakistan	28	3	31	1	32	1	33	1	32		32	2	30	1	29	1	28	1	27
128	Azerbaijan	30		30		30	5	25	6	31	1	30	1	29		29	1	28	1	27
124	Gabon	31	1	30	1	31		31	1	32	3	35	1	34	3	37	3	34	1	35
110	Malawi	35	5	30	1	31	1	32	1	31		31		31	2	33	4	37		37
136	Mali	29	1	30	1	29	3	32	1	31	1	32	3	35	3	32	4	28	6	34
136	Russia	29	1	30	2	28		28	1	29		29		29	2	27	1	28		28
128	Laos	30	1	29		29		29		29	1	30	5	25		25	1	26	5	21
140	Mauritania	28	1	29	1	28	1	27	1	28	1	27	4	31	1	30		30	1	31
128	Togo	30	1	29		29	1	30	2	32		32		32	3	29		29	1	30
128	Dominican Republic	30	2	28		28	2	30	1	29	2	31	2	33	1	32	3	29	3	32
136	Liberia	29	1	28		28	4	32	1	31	6	37		37		37	1	38	3	41
140	Myanmar	28		28	1	29		29	1	30	2	28	6	22	1	21		21	6	15
128	Paraguay	30	2	28		28	1	29		29	1	30	3	27	3	24		24	1	25
136	Angola	29	2	27	1	26	7	19		19	1	18	3	15	4	19	4	23	1	22
128	Djibouti	30	3	27	3	30	1	31		31	1	30	4	34		34	2	36		36
124	Papua New Guinea	31	4	27	1	28		28	1	29	1	28	3	25		25		25		25
140	Uzbekistan	28	2	26	1	25	2	23	1	22	1	21	2	19	1	18	1	17		17
144	Uganda	27		27	1	28	2	26		26	1	25		25	1	26		26	3	29
144	Cameroon	27	2	25		25		25		25	1	26	1	27		27	2	25	1	26
147	Bangladesh	26		26		26		26	2	28	2	26	1	25		25	2	27	1	26
147	Madagascar	26	1	25	1	24	1	25	1	24	2	26	2	28		28		28	4	32
147	Mozambique	26	1	25	1	26	3	23	2	25	2	27	4	31		31	1	30	1	31
150	Guinea	25	3	28	1	29	1	28	1	27		27	2	25		25	1	24		24
150	Guatemala	25		25	1	26	1	27	1	28		28		28	4	32	3	29	4	33
150	Iran	25		25	1	26	2	28	2	30	1	29	2	27		27	2	25	3	28
150	Tajikistan	25		25		25		25	4	21	4	25	1	26	3	23	1	22		22
154	Central African Republic	24	2	26	1	25	1	26	3	23	3	20	4	24		24	1	25	1	26
154	Lebanon	24	1	25	3	28		28		28		28		28	1	27	1	28	2	30
154	Nigeria	24	1	25	1	26	1	27		27	1	28	2	26	1	27	2	25	2	27
157	Honduras	23	1	24	2	26	3	29		29	1	30	1	31	2	29	3	26	2	28
157	Iraq	23	2	21	1	20	2	18		18	1	17	1	16		16		16	2	18
157	Cambodia	23	2	21	1	20		20	1	21		21		21		21	1	20	2	22
157	Zimbabwe	23	1	24		24	2	22		22		22	1	21		21		21	1	20
161	Eritrea	22	1	21	2	23	1	24	4	20	2	18		18		18	2	20	5	25
162	Republic of the Congo	21	2	19		19		19	2	21	1	20	3	23		23	1	22	4	26
162	Guinea-Bissau	21	2	19	1	18	9	28	1	27	11	16	1	17	2	19		19	6	25
164	Comoros	20	1	21	4	25	2	27		27	3	24	2	26		26	2	28		28
164	Haiti	20	2	18		18	2	20	2	22	2	20	3	17	2	19		19		19
164	Nicaragua	20	2	22		22	3	25	1	26		26	1	27	1	28		28	1	29
164	Sudan	20	2	16		16		16		16	2	14	2	12	1	11		11	2	13
164	Chad	20	1	21	1	20	1	19	1	20		20	2	22		22	3	19		19
165	Burundi	19		19		19	2	17	5	22	2	20	1	21	1	20	1	21	2	19
162	Democratic Republic of the Congo	21	3	18		18	1	19	2	21		21	1	22		22		22	1	21
169	Turkmenistan	19		19		19	1	20	1	19	3	22	4	18	1	17		17		17
172	Equatorial Guinea	17	1	16		16		16	1	17	2							19	1	20
172	Libya	17		17	1	18	1	17		17	3	14	2	16	2	18	3	15	6	21
174	Afghanistan	16	3	19	3	16		16	1	15		15	4	11	1	12	4	8		8
174	North Korea	16	2	18	1	17	3	14	3	17	9	8		8		8		8		8
174	Yemen	16	1	15		15	1	14	2	16	2	14	4	18	1	19	1	18	5	23
177	Venezuela	14	1	15	1	16	2	18		18	1	17		17	2	19	1	20	1	19
178	Somalia	13	1	12	3	9	1	10	1	9	1	10	2	8		8		8		8
178	Syria	13	1	14	1	13		13	1	14	1	13	5	18	2	20	3	17	9	26
180	South Sudan