| 2006 | 16 reads | 3.71 |
| 2001 | 10 reads | 3.25 |
| 1999 | 21 reads | 3.36 |
| 1981 | 2 reads | 2.33 |
| 2002 | 10 reads | 3.44 |
| 1998 | 19 reads | 3.53 |
| 1980 | 4 reads | 3 |
| 2010 | 8 reads | 4.67 |
| 2000 | 20 reads | 3.22 |
| 2009 | 14 reads | 2.92 |
| 2005 | 1 read | 3 |
| 2001 | 2 reads | 3 |
| 1980 | 3 reads | 3 |
| 1990 | 3 reads | 4 |
| 2004 | 20 reads | 3.8 |
| 1993 | 0 reads | 0 |
| 2003 | 12 reads | 3.2 |
| 2008 | 12 reads | 3.78 |
| 2004 | 25 reads | 3.67 |
| 2016 | 6 reads | 2.75 |
| 2011 | 16 reads | 3.54 |
| 1998 | 4 reads | 4 |
| 2007 | 11 reads | 3.83 |
| 1991 | 68 reads | 3.95 |
| 2013 | 6 reads | 2.8 |
| 2004 | 366 reads | 4 |
| 2011 | 7 reads | 3.86 |
| 2010 | 9 reads | 3.56 |
| 2012 | 7 reads | 3.4 |
| 2012 | 6 reads | 3.5 |