Jahr  MPECS Discovery Observations
1993      0         0            0
1994      0         0            0
1995      1         0            7
1996      0         0            0
1997      0         0            0
1998      0         0            0
1999      0         0            0
2000      3         0           10
2001     44        13          290
2002     16         2           65
2003      3         0           10
2004     19        10          164
2005     15         8          170
2006     15         0          435
2007      3         0           36
2008     53        13          246
2009    115        72          537
2010      5         0          108
2011      0         0            0
2012     10         0           74
2013     27        14           98
2014     62        32          319
2015     28         9          134
2016      0         0            0
2017      0         0            0
2018      0         0            0
2019      0         0            0
2020      0         0            0
2021      0         0            0
2022      2         0          199
2023      0         0            0