| Value | Category | Cases | |
|---|---|---|---|
| 1 | Upto 1950 | 4285 |
9.2%
|
| 2 | 1951-1955 | 1351 |
2.9%
|
| 3 | 1956-1960 | 2523 |
5.4%
|
| 4 | 1961-1965 | 3814 |
8.2%
|
| 5 | 1966-1970 | 4447 |
9.5%
|
| 6 | 1971-1975 | 6594 |
14.2%
|
| 7 | 1976-1980 | 8788 |
18.9%
|
| 8 | 1981 On wards | 14507 |
31.1%
|
| 9 | NR | 264 |
0.6%
|