| Year | Total | YoY Change |
|---|---|---|
| 2000 | 107 | |
| 2001 | 547 | 411.21% |
| 2002 | 491 | -10.24% |
| 2003 | 302 | -38.49% |
| 2004 | 358 | 18.54% |
| 2005 | 259 | -27.65% |
| 2006 | 148 | -42.86% |
| 2007 | 136 | -8.11% |
| 2008 | 163 | 19.85% |
| 2009 | 21 | -87.12% |
| 2010 | 7 | -66.67% |
| 2011 | 3 | -57.14% |
| 2012 | 2 | -33.33% |
| 2013 | 1 | -50% |
| 2015 | 2 | 100% |
| 2016 | 4 | 100% |
| 2017 | 5 | 25% |
| 2018 | 4 | -20% |
| 2019 | 14 | 250% |
| 2020 | 6 | -57.14% |
| 2021 | 3 | -50% |
| 2022 | 2 | -33.33% |