| Similarity | Rank | |
|---|---|---|
| 2007 | 0.986 | 1267 |
| 2009 | 0.983 | 927 |
| 2006 | 0.975 | 1538 |
| 2010 | 0.974 | 709 |
| 2005 | 0.970 | 1749 |
| 2004 | 0.963 | 2062 |
| 2011 | 0.955 | 635 |
| 2003 | 0.944 | 2268 |
| 2002 | 0.937 | 2628 |
| 2001 | 0.922 | 2615 |
| 2012 | 0.918 | 515 |
| 1999 | 0.900 | 3420 |
| 1998 | 0.884 | 3724 |
| 1997 | 0.875 | 4165 |
| 2000 | 0.862 | 2056 |
| 1996 | 0.857 | 4296 |
| 1995 | 0.848 | 4621 |
| February | 0.845 | 1490 |
| September | 0.844 | 1064 |
| January | 0.842 | 1183 |
| June | 0.839 | 977 |
| March | 0.838 | 1020 |
| November | 0.836 | 1119 |
| October | 0.832 | 1063 |
| 1994 | 0.831 | 4973 |