Sri Lanka - Population pyramid
| Date | 0-14 years % | 15-64 years % | > 64 years % |
|---|---|---|---|
| 1973 | 38.81% | 56.90% | 4.29% |
| 1972 | 39.24% | 56.54% | 4.22% |
| 1971 | 39.61% | 56.23% | 4.16% |
| 1970 | 39.94% | 55.96% | 4.10% |
| 1969 | 40.22% | 55.71% | 4.07% |
| 1968 | 40.46% | 55.48% | 4.06% |
| 1967 | 40.66% | 55.28% | 4.06% |
| 1966 | 40.83% | 55.09% | 4.08% |
| 1965 | 40.98% | 54.91% | 4.12% |
| 1964 | 41.06% | 54.76% | 4.18% |
| 1963 | 41.14% | 54.59% | 4.27% |
| 1962 | 41.25% | 54.37% | 4.38% |
| 1961 | 41.32% | 54.16% | 4.52% |
| 1960 | 41.29% | 54.03% | 4.67% |