Year annual % 1977 12.393833578119697 1978 0.4486626404096796 1979 2.2643313675545755 1980 6.637630276560927 1981 6.123385319038377 1982 6.432121450707925 1983 10.730145660598822 1984 2.4915645324877573 1985 6.059969911577554 1986 7.76430528268186 1987 -0.25530325242201 1988 1.269950115085706 1989 15.63731855772457 1990 14.1512702211664 1991 5.435256956034124 1992 6.738681152371598 1993 2.9689792196956546 1994 6.8617322590587975 1995 1.884591530842485 1996 2.0465666064470582 1997 1.2455594998883441 1998 6.004402675030022 1999 -0.373208627520512 2000 -0.4138695775691872 2001 0.773909402226451 2002 0.9245097310599135 2003 2.1472631037640326 2004 3.0950795015291135 2005 2.00647430326822 2006 10.649451546762819 2007 5.0489183732776155 2008 23.624684425513493 2009 3.1615964807251657 2010 8.077456097130735 2011 5.9105109580173405 2012 4.6068152259388455 2013 6.143623889444399 2014 3.4453235631560943 2015 2.1697521169532337 2016 1.362006641750682 2017 1.7835501097129622 2018 2.2730450772344852 2019 0.8439280956813207 2020 -0.7081653132260897 2021 2.2036060053217454 2022 2.600533851341652 2023 1.7781098469800298