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            4
2009     19         0           69
2010      7         0           36
2011     16         0           89
2012     11         0           48
2013      2         0           15
2014      1         0            3
2015      3         0           12
2016      0         0            0
2017      0         0            0
2018      1         0            3
2019      1         1           12
2020      1         0            3
2021      1         0            3
2022      3         0           12
2023      0         0            0