Year NDay Positions each day
1979   4   19  18  17  17  17
1980   4   16  17  18  19  22
1981   4   22  23  24  25  25
1982   4  999 999 999 999 999
1983   4  999 999 999 999 999
1984   4  999 999 999 999 999
1985   4   60  60  60  60  60
1986   4  999 999 999 999 999
1987   4  999 999 999 999 999
1988   4   55  55  55  54  53
1989   4  999 999 999 999 999
1990   4  999 999 999 999 999
1991   4  999 999 999 999 999
1992   4  999 999 999 999 999
1993   4  999 999 999 999 999
1994   4  999 999 999 999 999
1995   4  999 999 999 999 999
1996   4   56  57  58  59  59
1997   4  999 999 999 999 999
1998   4  999 999 999 999 999
1999   4  999 999 999 999 999
2000   4  999 999 999 999 999
2001   4  999 999 999 999 999
2002   4  999 999 999 999 999
2003   4   66  65  65  66  66
2004   4  999 999 999 999 999
2005   4  999 999 999 999 999
2006   4  999 999 999 999 999
2007   4  999 999 999 999 999
2008   4  999 999 999 999 999
2009   4  999 999 999 999 999
2010   4  999 999 999 999 999
2011   4  999 999 999 999 999
2012   4  999 999 999 999 999
2013   4  999 999 999 999 999
2014   4  999 999 999 999 999
2015   4   79  78  77  76  75