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 38 27 128 2007 8 3 28 2008 11 1 40 2009 3 3 13 2010 0 0 0 2011 1 0 13 2012 0 0 0 2013 6 6 22 2014 0 0 0 2015 0 0 0 2016 2 2 7 2017 0 0 0 2018 0 0 0 2019 36 30 171 2020 19 18 59 2021 0 0 0