Year	annual %
1961	2.454514017689319
1962	2.4649660847108645
1963	2.0417677610224594
1964	2.8044044931856456
1965	2.6985584692742526
1966	2.2810427986438615
1967	2.3997049754328414
1968	2.2383715139166105
1969	2.0077554993380637
1970	1.998521058977883
1971	2.250952034485258
1972	-0.21541257488897084
1973	-0.35603313248803337
1974	2.304204263676625
1975	2.254626674172893
1976	1.9958618246895967
1977	2.32252819683257
1978	2.6375899055805805
1979	2.2174003405391467
1980	3.9837040911734
1981	3.87071486160378
1982	2.273946987415156
1983	2.478822516329584
1984	2.2272012617177537
1985	1.9623497094975975
1986	1.6686075931429936
1987	2.0610911795302034
1988	1.9647932597170563
1989	1.6829711846505044
1990	1.789371435436846
1991	1.8080643420826676
1992	2.420632822403245
1993	-3.5252689064334866
1994	0.3546511959079037
1995	5.80361237790564
1996	-0.25522235393121667
1997	-0.3348562715615715
1998	1.6346190626140737
1999	2.1477729043577938
2000	1.813097621563022
2001	2.240531755271707
2002	2.5524095933361033
2003	2.889573876886643
2004	3.460750369775857
2005	3.4397186987376815
2006	3.3126420006122466
2007	3.398137952898321
2008	3.8299010192817096
2009	4.790984716774782
2010	4.382246881001603
2011	3.236764003107046
2012	3.2162933839780465
2013	3.2262840191045403
2014	3.0131694650111402
2015	1.8458081880444484
2016	1.2758187029283619
2017	1.9236719703995
2018	2.609680187878997
2019	2.879455703778258
2020	2.4715355686932026
2021	2.2660523487105397
2022	2.2415683323294595
2023	2.241727501135832