| Year | Rank | Number |
| 2009 | 11557 | 6 |
| 2005 | 12285 | 5 |
| 2003 | 11759 | 5 |
| 2002 | 9992 | 6 |
| 2001 | 11407 | 5 |
| 1993 | 9411 | 5 |
| 1989 | 7423 | 6 |
| 1988 | 6816 | 6 |
| 1978 | 6260 | 5 |
| Year | Rank | Number |
| 2009 | 11557 | 6 |
| 2005 | 12285 | 5 |
| 2003 | 11759 | 5 |
| 2002 | 9992 | 6 |
| 2001 | 11407 | 5 |
| 1993 | 9411 | 5 |
| 1989 | 7423 | 6 |
| 1988 | 6816 | 6 |
| 1978 | 6260 | 5 |