Year % of relevant age group 1970 105.1001 1971 102.3694 1972 100.4169 1973 98.76184 1974 97.08149 1975 98.87969 1976 100.5668 1977 100.7993 1978 100.7739 1979 98.91218 1980 99.26706 1981 98.4902 1982 98.87237 1983 98.76604 1984 98.66953 1985 100.1424 1986 100.8613 1987 102.4839 1988 102.183 1989 101.993 1990 101.7173 1991 100.6471 1992 99.16357 1993 102.0164 1994 99.15393 1995 101.0261 1996 104.6567 1997 104.359 1998 101.2829 1999 101.22 2000 100.7091 2001 99.99164 2002 99.90665 2003 100.5091 2004 102.0402 2005 102.1794 2006 102.8359 2007 103.3025 2008 102.6859 2009 101.2778 2010 101.319 2011 100.6948 2012 100.4442 2013 99.91037 2014 100.7636 2015 102.0354 2016 101.39 2017 97.8254 2018 98.50754