Jahr  MPECS Discovery Observations
1993      0         0            0
1994      0         0            0
1995      0         0            0
1996      0         0            0
1997      0         0            0
1998      0         0            0
1999      0         0            0
2000      0         0            0
2001      6         0           89
2002     22         0          211
2003     31         0          273
2004      0         0            0
2005     11         0          181
2006      3         0           14
2007      0         0            0
2008     14         0          262
2009     46         0          622
2010      9         0          167
2011     11         0          196
2012      4         0           65
2013     10         0          276
2014      3         0           26
2015      1         0            7
2016      1         0           59
2017      3         0          130
2018      5         0           84
2019      2         2           79
2020      6         2           75
2021      5         0          103
2022      3         0           77
2023      0         0            0
2024      0         0            0