Year	72h Error
1970	253.8
1971	381.9
1972	689.2
1973	363.2
1974	348.3
1975	402.1
1976	433
1977	485.1
1978	423.3
1979	238.4
1980	404.8
1981	423
1982	271.3
1983	418
1984	387.4
1985	339.7
1986	383.5
1987	349.2
1988	226.1
1989	283.4
1990	301.7
1991	296.6
1992	279.9
1993	240.5
1994	341.6
1995	233.7
1996	189.8
1997	229.2
1998	201.8
1999	211.1
2000	220.7
2001	187.7
2002	177.9
2003	132.4
2004	143
2005	150.1