Year	annual %
1968	3.505873937443482
1969	5.6738299544417
1970	2.832247688453876
1971	4.7387528585172305
1972	1.7973544302790145
1973	1.4953858623739933
1974	5.851030958138168
1975	2.5798995017023856
1976	3.1668361770012154
1977	2.86652824359561
1978	-0.036123892179674044
1979	0.40274060115579857
1980	2.8720578709360467
1981	2.8550636946301324
1982	1.1965222632821053
1983	1.5104703861669577
1984	-0.829965965376573
1985	0.7152789630817438
1986	2.664086924441648
1987	5.105681122645137
1988	3.537776311346292
1989	-0.11079866358919332
1990	-2.7631398199808643
1991	1.234813829995403
1992	0.040932361657255
1993	1.0933297302552916
1994	1.584285423741477
1995	5.0775816125929225
1996	5.764135390631139
1997	6.19492450867223
1998	4.0563169639215175
1999	2.6732287780022688
2000	3.2027035957058274
2001	4.326050751812957
2002	4.838812055805491
2003	4.870497655315347
2004	6.138932080212854
2005	6.579886995424999
2006	5.920969999756437
2007	6.116903220779207
2008	5.542126313178699
2009	4.154478074922679
2010	6.982844240986537
2011	0.7859747273377735
2012	-3.2160208200877918
2013	3.291082558468304
2014	4.390795714716745
2015	-0.5697035941235669
2016	2.0231472278880602
2017	3.0386972177857956
2018	3.4161358931485353
2019	4.23360610408281
2020	0.34438686321516343
2021	2.0697466857708235
2022	3.736941965267434
2023	3.00565474237618