| Value | Category | Cases | |
|---|---|---|---|
| 1 | Upto 1950 | 6490 |
11.2%
|
| 2 | 1951-1955 | 2038 |
3.5%
|
| 3 | 1956-1960 | 3820 |
6.6%
|
| 4 | 1961-1965 | 5530 |
9.6%
|
| 5 | 1966-1970 | 6599 |
11.4%
|
| 6 | 1971-1975 | 10139 |
17.5%
|
| 7 | 1976-1980 | 13009 |
22.5%
|
| 8 | 1981 On wards | 10204 |
17.6%
|
| 9 | NR | 49 |
0.1%
|