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      0         0            0
2002      0         0            0
2003      0         0            0
2004      0         0            0
2005      0         0            0
2006      0         0            0
2007      7         0           31
2008      9         0           56
2009     12         0           70
2010      9         1           95
2011     14         0           71
2012     18         2          148
2013     10         1           59
2014     12         1          121
2015     10         1          111
2016      7         0           76
2017      9         1          422
2018     29         9          336
2019     23        16          734
2020     58        29          758
2021     50        25          693
2022     35        14          664
2023      0         0            0