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      7         0           30
2002     62         0          220
2003     71         0          318
2004     24         0          145
2005      0         0            0
2006     40         0          238
2007     55         3          226
2008     63         8          343
2009     74        10          413
2010     61         6          215
2011     26         5          185
2012     17         2          109
2013     12         2           82
2014      0         0            0
2015      0         0            0
2016      1         0            2
2017      0         0            0
2018      0         0            0
2019      0         0            0
2020      1         0            1
2021      1         0            3
2022      2         1            4