Year annual % 1962 2.015374611534341 1963 0.9153711084777711 1964 2.115426913166999 1965 1.5013314568520997 1966 2.7511976209561055 1967 2.0720271560513694 1968 1.5652695136578174 1969 0.706272590546142 1970 3.9103337359299104 1971 9.090662783953988 1972 2.0979360816292285 1973 9.190863229577431 1974 34.606550552296554 1975 5.454291225748243 1976 8.88889261239806 1977 11.255860813970969 1978 8.417213279000578 1979 19.27185581719604 1980 14.882020116728327 1981 9.909970030161674 1982 6.432121450707925 1983 10.730145660598822 1984 8.24745260848205 1985 4.054488148005902 1986 7.490749486475195 1987 9.894159357520579 1988 9.060963477006354 1989 15.824346036726233 1990 16.622449874924058 1991 11.99358111515916 1992 13.171745343996676 1993 8.429105388322682 1994 8.448871563887977 1995 10.132943603492123 1996 5.7321313488206656 1997 10.143393230676189 1998 0.8299844511935248 1999 5.401807865235924 2000 10.071665337274517 2001 2.546444851156224 2002 2.7251909495501323 2003 4.731124936680693 2004 10.886437514594128 2005 9.081589238841325 2006 9.872978935284628 2007 6.072217080520261 2008 16.479240691772034 2009 0.7000873429659862 2010 11.651590438919136 2011 11.618527083673449 2012 5.937544713117376 2013 5.119320813827493 2014 3.4453235631560943 2015 2.1697521169532337 2016 1.2780224837288756 2017 4.713885693893772 2018 6.164678364676732 2019 3.8494693014724106 2020 6.176934097748955 2021 8.953971740622606 2022 16.655932242175346 2023 2.9806566481043077