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      2         0            6
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      1         0           12
2010     22         3           91
2011     15        14           55
2012    106        20          502
2013    157        10          963
2014    122        18          711
2015     34         9          178
2016     16        12           87
2017     42        21          229
2018    113        30          881
2019    104        17          680
2020     28        21          209
2021     31        27          190
2022     17        13          109
2023      0         0            0