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      0         0            0
2010      4         0           25
2011     23        10           91
2012     55        15          233
2013     54         9          384
2014     61         6          424
2015     96         9          460
2016     41         3          193
2017     37        11          204
2018     13         4           49
2019     35         6          195
2020     13         8           79
2021      6         4           15
2022      6         2           27
2023      1         1            3