Year annual % 1961 4.439820158040113 1962 3.6083406546308705 1963 3.5880746013284295 1964 3.957142352548091 1965 3.620684821929744 1966 3.488928732175811 1967 3.205237222829157 1968 2.989387717441682 1969 2.894756775429618 1970 2.0351019424544656 1971 1.20927634942482 1972 1.1102162481531377 1973 0.9531629085778502 1974 1.13267865118729 1975 1.2702550389563818 1976 1.1887678055640578 1977 1.2183319578653118 1978 1.2715626117831056 1979 1.2359427463601727 1980 1.2005061507220667 1981 1.3118360440507004 1982 1.325019065360298 1983 1.3376585443887545 1984 1.3168061847612362 1985 1.118538879748954 1986 1.061452850277393 1987 1.111176824399701 1988 1.0006926328031325 1989 1.5317041176450925 1990 2.0525910122575235 1991 1.9941750147506079 1992 2.173091550492829 1993 2.1708316879257317 1994 2.0013354577589375 1995 1.8042776952815451 1996 1.6583409738153174 1997 1.6029100385206945 1998 1.5874266318530568 1999 1.0682814044386404 2000 0.40891148305413166 2001 0.36045148860167675 2002 0.33220582142330807 2003 0.3398836053904272 2004 0.4559126721428878 2005 0.6030746801779258 2006 0.6776233721831643 2007 0.7090086702372579 2008 1.675300162657475 2009 1.6497968406487948 2010 0.7272799123383874 2011 0.8060063765210401 2012 0.796762660425516 2013 0.723697759292005 2014 0.6422942192020366 2015 0.5485058611710081 2016 0.4376193723579453 2017 0.26281427388135753 2018 0.1088143714161532 2019 0.051515486875855436 2020 -0.15151309917242692 2021 -0.4318197455754445 2022 -0.8762034384183558 2023 -1.2431587740719345