min Jul | max Jul | min Age | max Age | min Sep | max Sep | |
1948-58 | 50 | 54 | 50 | 55 | 52 | 55 |
1958-68 | 51 | 54 | 52 | 55 | 54 | 60 |
1968-78 | 50 | 56 | 53 | 58 | 56 | 57 |
1978-88 | 54 | 60 | 53 | 60 | 56 | 59 |
1988-98 | 51 | 59 | 54 | 57 | 55 | 61 |
1998-2008 | 41 | 53 | 52 | 54 | 50 | 54 |
2008-2014 | 48 | 51 | 50 | 53 | 53 | 54 |