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      2         0           50
2010     49         0          796
2011     42         0         1057
2012     29         0          891
2013     31         0          759
2014     30         0          767
2015     33         0          558
2016     40         1          618
2017     25         1          605
2018     19         8          554
2019     25        14          546
2020     29        12          579
2021     24        10          594
2022     13         0          139
2023     20         8          255