Aantal #1-entries per jaar
| Jaar | Aantal |
| 1972 | 1 |
| 1995 | 2 |
| 1996 | 3 |
| 1997 | 6 |
| 1998 | 6 |
| 1999 | 4 |
| 2000 | 4 |
| 2001 | 3 |
| 2002 | 8 |
| 2003 | 3 |
| 2004 | 11 |
| 2005 | 11 |
| 2006 | 16 |
| 2007 | 19 |
| 2008 | 3 * |
|
Aantal #1-entries per jaar |
| Jaar | Aantal |
| 1972 | 1 |
| 1995 | 2 |
| 1996 | 3 |
| 1997 | 6 |
| 1998 | 6 |
| 1999 | 4 |
| 2000 | 4 |
| 2001 | 3 |
| 2002 | 8 |
| 2003 | 3 |
| 2004 | 11 |
| 2005 | 11 |
| 2006 | 16 |
| 2007 | 19 |
| 2008 | 3 * |