Year annual % 1961 0.9390365174962909 1962 0.9765445386691738 1963 1.2708014329693356 1964 0.4610530359011875 1965 1.4611229961815582 1966 2.6086110112059373 1967 3.480335621725004 1968 8.981614609994963 1969 6.281063126072041 1970 6.269519404346241 1971 9.546211563953804 1972 9.525770760941683 1973 12.812209651539334 1974 14.983947729100478 1975 6.357027206284258 1976 2.7836491992650565 1977 9.269101096745459 1978 4.9187102558094296 1979 6.41536340126774 1980 9.854087069832246 1981 17.709391297289173 1982 12.208591966669943 1983 10.997381078612861 1984 10.296552491256577 1985 7.61408816829676 1986 5.835136714215764 1987 6.488154178795597 1988 4.893013973009502 1989 5.636713146963899 1990 6.033572308769081 1991 6.430591168660584 1992 2.813881100985256 1993 5.196304589080938 1994 1.9595679677018296 1995 4.178463515155741 1996 29.364697605249148 1997 4.023903101611737 1998 2.741551106455759 1999 2.712151202896095 2000 -4.236356147347308 2001 -1.3691957412820415 2002 8.580442291046154 2003 2.8247395206592216 2004 4.692142598138503 2005 6.762374737653602 2006 19.579161808103777 2007 6.574894831730774 2008 5.108914102363627 2009 1.0435831699592768 2010 2.2362220025570707 2011 -1.1512559809426506 2012 6.698203691557339 2013 1.6572731942049899 2014 3.01189087721518 2015 2.9520200698424333 2016 4.373203842214508 2017 -0.09483373598973799 2018 1.6111169764895976 2019 2.4193519449037666 2020 -0.40980435959248496 2021 0.36140003049776226 2022 0.9382268264811984