Yearly occurrence of S scale

Year S5 S4 S3 S2 S1
1996 0 0 0 0 0
1997 0 0 0 1 1
1998 0 0 2 4 2
1999 0 0 0 0 5
2000 0 2 0 2 9
2001 0 3 2 6 11
2002 0 0 1 5 13
2003 0 1 1 3 4
2004 0 0 1 2 3
2005 0 0 3 2 2
2006 0 0 1 1 0
2007 0 0 0 0 0
2008 0 0 0 0 0
2009 0 0 0 0 0
2010 0 0 0 0 1