This chart shows the % of the world adhering to different religions, from the years 1800 to 2050.
Figures for 2050 are projections
Sources:
1 (.pdf download),
2
| Year | Christianity | Islam | Hinduism | Buddhism | Chinese Folk Religions | Ethnoreligions | Sikhism | Judaism | New Religious Movements | Unaffiliated |
| 1800 | 22.68 | 10.01 | 11.95 | 7.68 | 34.31 | 10.18 | 0.2 | 1 | 0 | 0.03 |
| 1900 | 34.47 | 12.37 | 12.53 | 7.84 | 23.46 | 7.24 | 0.18 | 0.72 | 0.37 | 0.2 |
| 1970 | 32.91 | 15.54 | 12.65 | 6.32 | 6.45 | 4.64 | 0.29 | 0.38 | 1.07 | 19.17 |
| 2000 | 32.33 | 21.14 | 13.72 | 7.29 | 6.84 | 3.67 | 0.35 | 0.21 | 1.03 | 12.73 |
| 2020 | 32.13 | 24.2 | 13.91 | 6.77 | 5.78 | 3.68 | 0.37 | 0.19 | 0.86 | 11.46 |
| 2025 | 32.29 | 25.17 | 13.78 | 6.57 | 5.47 | 3.6 | 0.38 | 0.19 | 0.83 | 11.07 |
| 2050 | 34.11 | 29.46 | 12.83 | 5.49 | 4.05 | 3.16 | 0.43 | 0.18 | 0.67 | 8.93 |
