Jahr  MPECS Discovery Observations
1993      1         0            2
1994      2         1            7
1995     17        15           69
1996     22         8           90
1997     20         2           97
1998     13         8           53
1999     14         0           76
2000      0         0            0
2001      1         0            3
2002      5         0           24
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      0         0            0
2013      0         0            0
2014      0         0            0
2015      0         0            0
2016      0         0            0
2017      0         0            0
2018      0         0            0
2019      0         0            0
2020      0         0            0
2021      0         0            0
2022      0         0            0
2023      0         0            0
2024      0         0            0