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      1         0            6
2009     47        10          215
2010     44         8          231
2011     33         3          214
2012     34         3          240
2013     24         4          113
2014     10         3           65
2015      5         2           25
2016      1         0            6
2017      1         0            3
2018      0         0            0
2019      0         0            0
2020      2         0           11
2021      0         0            0