Year annual % 1961 0.6512322758819238 1962 4.547424468843971 1963 2.9341148085132858 1964 4.359919021823359 1965 5.016806259226541 1966 5.231562481613025 1967 1.3712985999197116 1968 3.7135799600968227 1969 2.212153908746245 1970 -0.7514673078182881 1971 1.8907596827448998 1972 4.145599492781258 1973 4.701156749286355 1974 -1.1708253934294106 1975 -1.0791871666169186 1976 4.399566200025575 1977 3.4673506706765664 1978 4.273301314529959 1979 2.0917081936799917 1980 -1.0305808173032887 1981 1.5872902355533114 1982 -2.8780786964188962 1983 3.4486310718783386 1984 6.186783204908281 1985 3.292196521545904 1986 2.3925996655199953 1987 2.5428154557082223 1988 3.21529852070816 1989 2.4980029249685742 1990 0.5637205869846156 1991 -1.5872873581937483 1992 1.9064104798829078 1993 1.4208404237189285 1994 2.8092811290260045 1995 1.4853042138318244 1996 2.4210132058763065 1997 3.2059931760353777 1998 3.26101990592511 1999 3.6525946614627998 2000 3.0277086806673736 2001 0.02573279384934324 2002 0.8456094312027034 2003 1.8340497143497316 2004 2.830648312057349 2005 2.509545486052062 2006 1.7832124633300594 2007 1.040655895451664 2008 -0.7749092923753551 2009 -3.4801626331938564 2010 1.8472007180017727 2011 0.9252715645661027 2012 1.4608144981122848 2013 1.391911769945466 2014 1.7729509109603754 2015 2.0049869749876166 2016 0.9817615065077518 2017 1.7989701955118704 2018 2.3132881833231522 2019 1.8525372898588728 2020 -3.386495377144712 2021 5.551923079597202 2022 1.551804358063606 2023 1.6643953110447427