Annual Index

Select by field work date

2020	2019	2018	2017	2016
2015	2014	2013	2012	2011
2010	2009	2008	2007	2006
2005	2004	2003	2002	2001
2000	1999	1998	1997	1996
1995	1994	1993	1992	1991
1990	1989	1988	1987	1986
1985	1984	1983	1982	1981
1980	1979	1978	1977	1976
1975	1974	1973	1972	1971
1970	1969	1968	1967	1966
1965	1964	1963