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      4         0           11
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      0         0            0
2011      0         0            0
2012      2         0           28
2013      8         0          101
2014     14         0          109
2015     13         0           79
2016     18         0          183
2017     11         0           90
2018     64         0          439
2019     19         2          106
2020      2         1           44
2021      0         0            0
2022      0         0            0
2023      0         0            0