Year	annual %
1961	1.0954627602007605
1962	6.014837702204417
1963	6.282815858833018
1964	4.9924411516419696
1965	4.681882177188072
1966	2.037277184727131
1967	-0.7588374577597108
1968	3.1359161150041643
1969	9.013222989576136
1970	7.8456487160210315
1971	7.76222492048737
1972	2.966928996906276
1973	4.322900353184082
1974	7.574940631028127
1975	-0.25825455675581566
1976	5.185222737143562
1977	2.7790554793616877
1978	-0.16027338615676
1979	3.952529395776523
1980	3.757947781925324
1981	-0.8159593893567632
1982	-1.2002541795094572
1983	-2.579405265941986
1984	2.247207489386895
1985	2.007438966412195
1986	1.9025059838385374
1987	2.951706733773335
1988	4.448831504145872
1989	2.3139182563887317
1990	2.3541027516727837
1991	0.3496821555547598
1992	-0.39997482088500647
1993	-0.8928927044007651
1994	0.9806027588555253
1995	3.3188879567217526
1996	5.130876871835156
1997	4.082400465403154
1998	2.502329777473534
1999	2.2046139297900993
2000	3.478123727449997
2001	4.198461361042604
2002	6.33116475055391
2003	4.050089792638474
2004	6.601960919577678
2005	6.018879164017292
2006	6.055864143965522
2007	6.1622421700753875
2008	5.189440688244829
2009	3.180480861618264
2010	5.995572686734832
2011	4.4144049339736
2012	3.258248440208078
2013	5.090440548349619
2014	4.87076021968717
2015	2.9203738827486347
2016	1.2420371763505358
2017	2.4842832882704897
2018	2.7549670578424355
2019	2.659745050283277
2020	-1.9668948269271453
2021	4.2649368924924715
2022	3.6605624227504734
2023	2.955095532128155