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      0         0            0
2010      0         0            0
2011     31         0         1158
2012     99         3         4228
2013     55         5         3549
2014     16         4          285
2015      1         0           28
2016      8         0           52
2017      1         0            3
2018      1         1            4
2019      4         1           32
2020     11         2           92
2021      4         0           34
2022      2         0            8
2023      0         0            0