Year	annual %
1971	8.383623581756055
1972	7.301004329311041
1973	9.250659601362088
1974	6.9206490154622315
1975	4.101846089508257
1976	5.048952465898935
1977	4.526739602304588
1978	3.9000935546215345
1979	7.401549189294784
1980	6.5477361928465
1981	0.22812518455846487
1982	-1.6248271004321992
1983	-2.1627074772709562
1984	4.159538180466129
1985	3.63424108024104
1986	3.59507865026913
1987	3.741276024489963
1988	0.43922046199109843
1989	5.1553479474622605
1990	-3.349846296014576
1991	3.512786148512646
1992	2.51331599095073
1993	4.424043308720485
1994	4.720621270093275
1995	0.925944389333182
1996	4.013010799184769
1997	5.40372329681027
1998	2.577037891630823
1999	0.13093550947954213
2000	3.579720083134248
2001	0.16727337439677115
2002	0.16741705317519973
2003	2.471237011002202
2004	4.4238241918992856
2005	3.8567345825406534
2006	6.450904708605606
2007	5.552221779108322
2008	3.7509819313106476
2009	-2.418235093684274
2010	6.243504927317105
2011	4.535583380075778
2012	2.3919806038378795
2013	3.115561998493547
2014	1.3104544932471214
2015	0.46884382566167915
2016	-0.6671750747108973
2017	1.9672558991022697
2018	0.9633793107699802
2019	0.6848141306204667
2020	-6.022442562255762
2021	6.395228678139091
2022	4.093693430988424
2023	2.190158932697912