Year	annual %
1968	7.6435827010557205
1969	7.418747198231657
1970	4.003279720239078
1971	5.5668510369008
1972	4.289800858845766
1973	-0.4249877731767242
1974	11.680282369696386
1975	13.705914127570495
1976	-5.801434450650589
1977	0.3974166078103849
1978	41.74947267251079
1979	9.045798497118042
1980	-11.778224139634219
1981	24.976186270402593
1982	10.68451468530867
1983	7.598501432626591
1984	9.918315028610621
1985	8.459578696899598
1986	8.4409426997033
1987	-2.1056941990239153
1988	-7.0174254969926295
1989	-2.989225807849266
1990	-8.004650481503191
1991	-5.621957162295928
1992	-2.0107299499572235
1993	-7.6085945899557
1994	1.1762690030260785
1995	2.73822706232194
1996	4.140971395577935
1997	4.268325526921359
1998	5.889487769390982
1999	4.858364131415982
2000	1.9034762954475326
2001	3.6664384688197345
2002	5.541264750811891
2003	7.6559665796977185
2004	8.22756713570601
2005	1.8125458751596426
2006	5.130181583668275
2007	3.4364728686678347
2008	3.4524859421529754
2009	3.658105042631661
2010	2.33738037772639
2011	3.349090456377894
2012	4.106062080840658
2013	4.589430662268555
2014	5.662588256547153
2015	6.252537210756287
2016	4.2195884431685045
2017	3.343308304377416
2018	3.9271512629075715
2019	3.158755608074287
2020	0.25486818727189586
2021	3.895658189308975
2022	2.5839586788423503
2023	4.467315517706709