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      0         0            0
2008      0         0            0
2009     14         0          113
2010     98         4         1026
2011     42         0          807
2012     34         0          867
2013     32         2          915
2014     22         0          511
2015     18         0          633
2016     17         0          471
2017     14         0          713
2018     14         1          655
2019     15         5         1063
2020     15         4          380
2021      0         0            0