|
| Implementing ST | Revocation ST | Revocation ST/Implementing ST |
| 1999 | 37 | 5 | 13.51% |
| 2000 | 31 | 20 | 64.52% |
| 2001 | 25 | 19 | 76.00% |
| 2002 | 52 | 17 | 32.69% |
| 2003 | 67 | 17 | 25.37% |
| 2004 | 45 | 32 | 71.11% |
| 2005 | 36 | 43 | 119.44% |
| 2006 | 64 | 22 | 34.38% |
| 2007 | 69 | 36 | 52.17% |
| 2008 | 29 | 48 | 165.52% |
| 2009 | 34 | 34 | 100.00% |
| 2010 | 41 | 23 | 56.10% |
| 2011 | 17 | 36 | 211.76% |
| 2012 | 27 | 72 | 266.67% |
| 2013 | 25 | 79 | 316.00% |
| 2014 | 49 | 53 | 108.16% |
| 2015 | 90 | 79 | 87.78% |
| 2016 | 82 | 48 | 58.54% |
| total | 820 | 683 | 83.29% |
| average | 45 | 37 | 83.29% |