| Value |
Category |
| 1 |
Before 1919 |
| 2 |
1919 to 1944 |
| 3 |
1945 to 1960 |
| 4 |
1961 to 1970 |
| 5 |
1971 to 1980 |
| 6 |
1981 to 1990 |
| 7 |
1991 to 2000 |
| 8 |
2001 and later |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.