Year	annual %
1976	12.555258418381268
1977	9.464930782844814
1978	19.47243693384421
1979	43.86296646460152
1980	2.408381011288078
1981	2.2825362072653608
1982	18.380552855930222
1983	9.852641642765098
1984	15.96836598586686
1985	4.576267038641314
1986	14.873750966040298
1987	29.59115072468964
1988	10.032225139332011
1989	9.066579043863785
1990	18.82242500982404
1991	14.356633926045145
1992	14.026586634705296
1993	-1.1119846925979469
1994	5.05934485559181
1995	20.68543707227893
1996	6.348384257674594
1997	4.853930489791247
1998	3.160198099555374
1999	8.667341103771287
2000	-3.203196519049779
2001	5.2542211703752
2002	9.447589656366615
2003	8.408572927774596
2004	6.551729914978945
2005	5.465746482443648
2006	11.189732247990504
2007	10.166799304598436
2008	5.600305809463105
2009	10.088642746469676
2010	2.637464940793306
2011	2.6458641605392206
2012	11.301845880481435
2013	3.0427688020897357
2014	4.969583975242986
2015	3.5208440460890675
2016	6.11641035623905
2017	17.206553352723002
2018	1.5660831390650096
2019	-11.784164485554072
2020	-11.76005105029196
2021	1.830880882304051
2022	-1.256562171661758
2023	-0.44956990180260215