| Similarity | Rank | |
|---|---|---|
| 2012-2013 | 0.954 | 32234 |
| 2013-14 | 0.911 | 28950 |
| 2014-2015 | 0.907 | 86599 |
| 2011-2012 | 0.904 | 33980 |
| 2010-2011 | 0.880 | 38921 |
| 2014-15 | 0.842 | 69971 |
| 2009-2010 | 0.841 | 39810 |
| 2012-13 | 0.839 | 26704 |
| 2014 | 0.793 | 2429 |
| 2011-12 | 0.789 | 28154 |
| 2010-11 | 0.760 | 32210 |
| 2006-2007 | 0.747 | 63103 |
| 2007-2008 | 0.736 | 51299 |
| 2009-10 | 0.732 | 37413 |
| 2008-2009 | 0.729 | 45024 |
| 2005-2006 | 0.726 | 67046 |
| 2009-2011 | 0.715 | 98262 |
| mid-year | 0.711 | 57104 |
| 2006-07 | 0.704 | 58537 |
| Summer | 0.701 | 4134 |
| Semester | 0.699 | 41537 |
| 2004-2005 | 0.698 | 74012 |
| 2008-09 | 0.690 | 41456 |
| 2003-2004 | 0.689 | 77355 |
| Fall | 0.682 | 5603 |