| 年份 | 粗出生率 | 粗死亡率 | 自然增长率 |
|---|---|---|---|
| 1960 | 36.6 | 11.1 | 25.5 |
| 1961 | 35.7 | 10.5 | 25.2 |
| 1962 | 35.1 | 10.1 | 25.0 |
| 1963 | 34.8 | 9.8 | 25.0 |
| 1964 | 34.4 | 9.6 | 24.9 |
| 1965 | 33.8 | 9.2 | 24.6 |
| 1966 | 33.1 | 8.9 | 24.2 |
| 1967 | 33.2 | 8.6 | 24.6 |
| 1968 | 32.3 | 8.4 | 23.9 |
| 1969 | 31.4 | 8.2 | 23.2 |
| 1970 | 30.6 | 7.6 | 23.0 |
| 1971 | 29.7 | 7.3 | 22.5 |
| 1972 | 29.3 | 7.3 | 22.0 |
| 1973 | 28.8 | 7.3 | 21.5 |
| 1974 | 27.9 | 7.3 | 20.7 |
| 1975 | 27.9 | 7.2 | 20.7 |
| 1976 | 28.0 | 7.1 | 20.8 |
| 1977 | 27.9 | 7.2 | 20.7 |
| 1978 | 28.5 | 6.8 | 21.7 |
| 1979 | 28.8 | 6.6 | 22.2 |
| 1980 | 28.1 | 6.5 | 21.7 |
| 1981 | 27.7 | 6.3 | 21.4 |
| 1982 | 25.9 | 6.1 | 19.8 |
| 1983 | 24.5 | 6.0 | 18.5 |
| 1984 | 23.8 | 5.9 | 17.9 |
| 1985 | 23.0 | 5.8 | 17.2 |
| 1986 | 22.1 | 5.7 | 16.3 |
| 1987 | 21.5 | 5.8 | 15.6 |
| 1988 | 20.8 | 5.9 | 14.9 |
| 1989 | 20.9 | 6.6 | 14.2 |
| 1990 | 20.6 | 5.9 | 14.7 |
| 1991 | 20.5 | 6.1 | 14.4 |
| 1992 | 20.4 | 5.9 | 14.5 |
| 1993 | 19.8 | 5.8 | 14.0 |
| 1994 | 19.3 | 6.0 | 13.3 |
| 1995 | 18.9 | 6.3 | 12.5 |
| 1996 | 18.4 | 6.5 | 11.9 |
| 1997 | 17.9 | 6.7 | 11.3 |
| 1998 | 17.5 | 6.8 | 10.7 |
| 1999 | 17.7 | 6.7 | 11.0 |
| 2000 | 18.2 | 8.1 | 10.1 |
| 2001 | 18.8 | 8.0 | 10.8 |
| 2002 | 18.9 | 7.9 | 11.1 |
| 2003 | 18.9 | 7.8 | 11.1 |
| 2004 | 18.8 | 9.5 | 9.3 |
| 2005 | 18.8 | 7.5 | 11.3 |
| 2006 | 19.2 | 7.6 | 11.6 |
| 2007 | 19.0 | 7.6 | 11.3 |
| 2008 | 18.5 | 7.8 | 10.7 |
| 2009 | 17.9 | 9.0 | 8.9 |
| 2010 | 17.6 | 7.4 | 10.2 |
| 2011 | 17.5 | 7.4 | 10.1 |
| 2012 | 17.3 | 7.2 | 10.1 |
| 2013 | 17.0 | 7.1 | 9.9 |
| 2014 | 16.4 | 7.0 | 9.4 |
| 2015 | 15.9 | 7.0 | 8.9 |
| 2016 | 15.5 | 6.9 | 8.6 |
| 2017 | 15.2 | 7.0 | 8.1 |
| 2018 | 14.8 | 7.0 | 7.8 |
| 2019 | 14.5 | 7.1 | 7.5 |
| 2020 | 14.2 | 7.1 | 7.2 |
| 2021 | 14.0 | 7.4 | 6.7 |
2021年，斯里兰卡人口粗出生率为14‰，粗死亡率为7.4‰，自然增长率为6.7‰。
