Inflation as measured by the consumer price index reflects the annual percentage change in the cost to the average consumer of acquiring a basket of goods and services that may be fixed or changed at specified intervals, such as yearly. The Laspeyres formula is generally used.
| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ナイジェリア | 13.8 | 7.4 | 6.9 | 17.9 | 13.7 | 10.8 | 12.2 | 8.5 | 8.0 | 9.0 | 15.7 | 16.5 | 12.1 | 11.4 | 13.2 | 17.0 | 18.8 | 24.7 | 33.2 |
| シエラレオネ | 7.2 | 6.8 | 6.6 | 5.5 | 4.6 | 6.7 | 10.9 | 18.2 | 16.0 | 14.8 | 13.4 | 11.9 | 27.2 | 47.6 | 28.6 | ||||
| ガーナ | 3.0 | 37.3 | 40.2 | 15.4 | 10.7 | 8.7 | 11.2 | 11.7 | 15.5 | 17.1 | 17.5 | 12.4 | 7.8 | 7.1 | 9.9 | 10.0 | 31.3 | 38.1 | 22.8 |
| ガンビア | -2.0 | 12.2 | 0.8 | 4.8 | 5.0 | 4.8 | 4.3 | 5.7 | 5.9 | 6.8 | 7.2 | 8.0 | 6.5 | 7.1 | 5.9 | 7.4 | 11.5 | 17.0 | 11.6 |
| ニジェール | 1.1 | -0.8 | 2.9 | 7.8 | 0.8 | 2.9 | 0.5 | 2.3 | -0.9 | -0.6 | 1.7 | 2.8 | 3.0 | -2.5 | 2.9 | 3.8 | 4.2 | 3.7 | 9.1 |
| ブルキナファソ | 1.8 | -0.5 | -0.3 | 6.4 | -0.8 | 2.8 | 3.8 | 0.5 | -0.3 | 0.7 | 0.4 | 1.5 | 2.0 | -3.2 | 1.9 | 3.7 | 14.3 | 0.7 | 4.2 |
| ギニアビサウ | 33.0 | 8.6 | 3.3 | 2.5 | 5.0 | 2.1 | 1.2 | -1.5 | 1.5 | 1.5 | 1.7 | 0.4 | 0.2 | 1.1 | 2.2 | 9.4 | 7.1 | 3.8 | |
| コートジボワール | 8.2 | -0.8 | 2.5 | 3.9 | 1.2 | 4.9 | 1.3 | 2.6 | 0.4 | 1.3 | 0.7 | 0.7 | 0.4 | -1.1 | 2.4 | 4.1 | 5.3 | 4.4 | 3.5 |
| マリ | 0.6 | -0.7 | 6.4 | 1.1 | 3.0 | 5.3 | -0.6 | 0.9 | 1.5 | -1.8 | 1.8 | 0.3 | -1.7 | 0.4 | 3.9 | 9.6 | 2.1 | 3.2 | |
| トーゴ | 4.5 | 1.0 | 1.9 | 6.8 | 1.4 | 3.6 | 2.6 | 1.8 | 0.2 | 2.6 | 1.3 | -1.0 | 0.9 | 0.7 | 1.8 | 4.6 | 7.6 | 5.3 | 2.9 |
| ベナン | 4.2 | 5.4 | 2.2 | 2.7 | 6.7 | 0.4 | -0.5 | 0.2 | -0.8 | 0.0 | 0.9 | 0.7 | 3.0 | 1.7 | 1.4 | 2.7 | 1.2 | ||
| カーボベルデ | 10.7 | -2.5 | 0.4 | 2.1 | 4.5 | 2.5 | 1.5 | -0.2 | 0.1 | -1.4 | 0.8 | 1.3 | 1.1 | 0.6 | 1.9 | 7.9 | 3.7 | 1.0 | |
| セネガル | 2.8 | 0.3 | 0.7 | 1.7 | 1.2 | 3.4 | 1.4 | 0.7 | -1.1 | 0.1 | 0.8 | 1.3 | 0.5 | 1.8 | 2.5 | 2.2 | 9.7 | 5.9 | 0.8 |
| リベリア | 10.8 | 7.3 | 8.5 | 6.8 | 7.6 | 9.9 | 7.7 | 8.8 | 12.4 | 23.6 | 27.0 | 17.0 | 7.8 | 7.6 | 10.1 |