Year annual % 1987 160.85714285714204 1988 73.29682365826964 1989 37.60586525091626 1990 574.6013227999265 1991 -67.3380348624878 1992 110.8896856499632 1993 40.46338763245265 1994 48.49969036761808 1995 42.99416180150188 1996 48.30191680585313 1997 119.36657549429736 1998 -11.145836368114798 1999 21.539030177296087 2000 60.73516716371057 2001 -13.391304082467178 2002 25.72834434122648 2003 -57.567227108593265 2004 41.946643003301894 2005 18.55028320860422 2006 4.316576072075216 2007 26.60462158424439 2008 29.72913307667366 2009 7.231829081636601 2010 19.545882748001034 2011 45.52211559963023 2012 -5.389597297177153 2013 4.994956468292839 2014 48.7791200277643 2015 27.192608948946624 2016 9.33870072431292 2017 2.8160755496740584 2018 6.055532336667527 2019 0.2531752066968487 2020 9.092820912901466 2021 20.89352405765109 2022 3.5061946953922916 2023 -1.113931403426772