| 2012 | 3.9 |
| 2001 | 4.02 |
| 1999 | 4.07 |
| 2003 | 4.19 |
| 1968 | 4.11 |
| 2010 | 3.86 |
| 2008 | 4 |
| 2010 | 4.36 |
| 1989 | 4.23 |
| 1860 | 3.56 |
| 2009 | 4 |
| 1967 | 4.1 |
| 1990 | 3.76 |
| 1958 | 3.81 |
| 2001 | 3.85 |
| 2015 | 3.64 |
| 1961 | 3.99 |
| 1996 | 4.14 |
| 2016 | 3.92 |
| 1963 | 4.09 |
| 2010 | 3.72 |
| 2012 | 3.96 |
| 2005 | 3.96 |
| 1949 | 4.2 |
| 2013 | 3.5 |
| 19 | 3.62 |
| 2015 | 3.02 |
| 2012 | 3.45 |
| 2014 | 3.51 |
| 1939 | 3.77 |
| 2015 | 4.04 |
| 2014 | 3.43 |
| 2008 | 3.57 |
| 2011 | 3.72 |
| 2002 | 4.05 |
| 1936 | 4.03 |
| 2015 | 3.67 |
| 2012 | 3.6 |