Year annual % 1971 3.327571826925208 1972 3.8417267737384577 1973 3.976387231843617 1974 -0.30161079694802595 1975 0.18688790309838055 1976 5.076178313012974 1977 3.379629837997001 1978 4.320359858777053 1979 2.8944612096327518 1980 -0.3811633996761117 1981 -1.3458064266352068 1982 -0.02730698075262694 1983 2.527852429643346 1984 3.0843169812327034 1985 2.678039812447608 1986 5.0739420129846735 1987 2.0327445452602717 1988 3.726299997564908 1989 2.471857124526352 1990 4.55795187157355 1991 3.056205317599975 1992 2.2154504250569147 1993 -1.2241946883820845 1994 1.8260023785017268 1995 1.7454026240242513 1996 0.5838131995979268 1997 1.0440894775850467 1998 2.135369947777505 1999 1.8716273325845236 2000 1.6481583943133558 2001 1.3654541041305777 2002 -0.22368612654595665 2003 -0.21601190711704987 2004 2.8375572753275122 2005 0.44256004512985214 2006 4.190280261736959 2007 2.994175257581162 2008 -0.02209649451232565 2009 -2.896596295811122 2010 3.287962018231383 2011 5.370335010699307 2012 0.030899316601235682 2013 0.3810807221539534 2014 1.8967313803396166 2015 1.8173867912778263 2016 2.2014998591129284 2017 1.8484403694816365 2018 1.2415880257567977 2019 1.4296782419661156 2020 -4.105972652831824 2021 2.9574619864561953 2022 -1.0991496705363772 2023 0.683251293206169