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     48        36          185
2000     14         8           39
2001      5         4           12
2002      0         0            0
2003      1         0            7
2004      1         0            7
2005      0         0            0
2006      1         0            4
2007      0         0            0
2008      0         0            0
2009      0         0            0
2010      0         0            0
2011      1         0           14
2012      8         0           58
2013      1         0            1
2014      4         0           69
2015      3         0           68
2016      2         0           65
2017      3         0           85
2018      4         0           61
2019      3         0           53
2020      1         0            1
2021      0         0            0