Year	annual %
1960	-5.03004159593691
1961	3.77970638342675
1962	-0.554904259869525
1963	4.30682175435956
1964	9.16214587129442
1965	2.26394257289731
1966	8.301835853323
1967	-2.93531098100653
1968	1.31621187827357
1969	1.41318124201974
1970	1.36849340736673
1971	9.57958328225631
1972	3.18969396917928
1973	22.7389194789195
1974	14.9506973439721
1975	16.7735703245816
1976	7.03815227823619
1977	6.49190058113337
1978	-2.67359498369291
1979	13.0939242998193
1980	17.7783052456577
1981	10.8583333329997
1982	7.35924227605051
1983	10.2436633526545
1984	6.40203239106075
1985	10.6488390138928
1986	3.27992663366622
1987	-11.4494646121705
1988	4.10546805875063
1989	6.92390503711238
1990	21.2760320067832
1991	15.4199073669492
1992	19.358494654122
1993	29.7059715065172
1994	39.3316195372753
1995	27.6081851727601
1996	20.5835962145112
1997	20.5590073395833
1998	5.26903547042201
1999	3.00439421550734
2000	9.33322197565603
2001	13.31672224251
2002	7.03287406224601
2003	28.6995777887374
2004	21.0318339277222
2005	13.973008326384
2006	11.3452152244299
2007	6.55722772638066
2008	15.2817744823772
2009	0.393886040173341
2010	4.82734190074673
2011	6.33279483849042
2012	5.01804155429246
2013	4.76502404779142
2014	3.43816659958601
2015	6.73184069658997
2016	11.5029073942666
2017	10.6800887242584
2018	12.4814111170435
2019	18.7037825672506
2020	22.7963113642528
2021	16.8415240198785
2022	33.98393194707
2023	36.8135162780854