Jahr MPECS Discovery Observations 1993 1 0 2 1994 0 0 0 1995 1 0 3 1996 0 0 0 1997 0 0 0 1998 4 1 44 1999 2 0 9 2000 13 6 30 2001 16 9 105 2002 4 4 32 2003 2 1 4 2004 16 4 75 2005 7 0 36 2006 6 2 20 2007 5 1 26 2008 5 2 13 2009 9 0 26 2010 4 0 12 2011 5 0 10 2012 1 0 2 2013 0 0 0 2014 0 0 0 2015 0 0 0 2016 3 0 43 2017 6 0 17 2018 2 0 35 2019 1 1 35 2020 0 0 0 2021 0 0 0 2022 0 0 0 2023 0 0 0