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 5 1 21 2009 3 0 218 2010 1 0 2 2011 3 0 14 2012 3 0 26 2013 3 0 22 2014 0 0 0 2015 0 0 0 2016 1 0 3 2017 5 0 17 2018 12 0 65 2019 12 2 154 2020 14 2 305 2021 1 0 6