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      6         1           25
2009      3         0          218
2010      1         0            2
2011      3         0           14
2012      3         0           26
2013      5         0           42
2014      0         0            0
2015      0         0            0
2016      1         0            3
2017     14         0           43
2018     21         0          110
2019     25         2          514
2020     13         2          299
2021     20         1          119
2022      4         0          117