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     95         0          604
2009     68         0          483
2010     39         0          270
2011     94         4          564
2012     76         2          599
2013    105         4          624
2014     36         1          182
2015     35         0          224
2016     31         0          192
2017     54         2          466
2018     34         0          184
2019     37         0          343
2020     36         0          340
2021     33         0          361
2022     21         0          252
2023      0         0            0