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      0         0            0
2009      0         0            0
2010      0         0            0
2011     16         7           76
2012     33        25          130
2013     13         6           39
2014     19        11           67
2015     12         9           39
2016     11        10           33
2017      0         0            0
2018      0         0            0
2019      1         0            3
2020      0         0            0
2021      0         0            0