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      0         0            0
2012      0         0            0
2013     40        25          267
2014     68        43          438
2015     31        16          256
2016     37        16          309
2017    103        39          532
2018     12         5           53
2019      5         0           21
2020     28        10          124
2021     17         7           87
2022      8         4           32
2023      0         0            0