Dropouts per edition
| Year | Participants | No. of dropouts | Stage of first dropout |
|---|---|---|---|
| 2021 | 1 | ||
| 2019 | 140 | 18 | 1 |
| 2018 | 145 | 11 | 1 |
| 2017 | 168 | 10 | 1 |
| 2016 | 176 | 32 | 1 |
| 2015 | 160 | 30 | 1 |
| 2014 | 151 | 29 | 1 |
| 2013 | 164 | 15 | 1 |
| 2012 | 157 | 25 | 1 |
| 2011 | 161 | 16 | 1 |
| 2010 | 168 | 35 | 1 |
| 2009 | 159 | 27 | 1 |
| 2008 | 157 | 60 | 1 |
| 2007 | 167 | 34 | 1 |
| 2006 | 182 | 70 | 1 |
| 2005 | 180 | 70 | 1 |
| 2004 | 178 | 63 | 1 |
| 2003 | 159 | 48 | 1 |
| 2002 | 142 | ||
| 2001 | 120 | ||
| 2000 | 148 | ||
| 1999 | 131 | ||
| 1998 | 99 | ||
| 1997 | 23 | ||
| 1996 | 73 |