Year	annual %
1961	4.68952431164918
1962	1.1049258095544303
1963	-12.27865726075315
1964	11.360282379938553
1965	10.541018761877226
1966	5.233273894027192
1967	4.313621829241271
1968	1.0248275531070163
1969	6.994386657537206
1970	4.255456893031521
1971	3.1128508439862514
1972	-3.317670934841601
1973	1.2447193523168636
1974	7.7028399493574256
1975	8.483021513734741
1976	1.5369132786034783
1977	-2.638679661075926
1978	-1.8061887721686105
1979	-1.8356962605444522
1980	1.7338897272193066
1981	1.4961659202039215
1982	-13.190134488472395
1983	-6.792386689346003
1984	-5.028737863668539
1985	2.399667458078511
1986	-0.900602237275649
1987	0.8993965940384783
1988	-3.693533100758728
1989	-4.916666665118157
1990	-3.0674846640672797
1991	6.057866185305727
1992	7.7578857760752555
1993	8.175105493040235
1994	8.532423166672757
1995	5.031446558120848
1996	7.955517541251027
1997	6.180665610199384
1998	-1.6791044918972915
1999	2.9601518031122396
2000	-1.3638039026187272
2001	2.2795216592190997
2002	1.1326269619947595
2003	-0.6322253882663773
2004	1.5633521103404178
2005	-1.9509575950171438
2006	5.129609347729996
2007	7.191236240574568
2008	1.7552234959201911
2009	3.6115084721858466
2010	4.138441601373415
2011	5.196251560516018
2012	5.276330620468087
2013	3.65338433338232
2014	1.6864944501958377
2015	0.6874045906194937
2016	3.80745626378814
2017	3.7344915457128423
2018	4.440912884759669
2019	5.35284003535665
2020	43.47965171684899
2021	20.00752973343542
2022	63.43986436650414
2023	33.016882987352886