Year	annual %
1961	1.5134016604999179
1962	1.7836382483432371
1963	2.272162998606921
1964	2.7080366667958726
1965	2.903004655884414
1966	2.8007365651029006
1967	2.6213083012856413
1968	2.4556620753543763
1969	3.0561614445219063
1970	3.558004657775219
1971	3.6735811603862953
1972	3.915285849256373
1973	4.043963814534825
1974	4.554804178039026
1975	5.477350671273391
1976	6.292218843635125
1977	6.649158410111864
1978	6.275419188253014
1979	5.097960516188888
1980	3.4213093779188375
1981	1.7720720366274958
1982	0.5146412940616357
1983	1.3098045431970229
1984	3.018355752938846
1985	3.9070243772123106
1986	4.880059046758911
1987	5.551835904276334
1988	5.592675185043664
1989	6.888716333124277
1990	9.374622362769394
1991	7.867703812521857
1992	-1.0479082678074358
1993	-2.1320970640444608
1994	1.7861937810009794
1995	0.7864918043739813
1996	2.1605154603872463
1997	3.331244462813044
1998	3.7879403376029748
1999	3.262628295288683
2000	2.901456079618169
2001	2.9161765734621774
2002	2.8449246559195287
2003	1.9694519860244046
2004	1.2749521765338399
2005	1.3210700059158789
2006	1.7190988059456027
2007	1.9335160789349408
2008	1.8247905047925406
2009	1.847455954029283
2010	1.7496384852234175
2011	1.614890639341282
2012	1.5259926913340451
2013	1.4447929111435949
2014	1.363178177223976
2015	1.2661059644140946
2016	1.1828918083557238
2017	1.1097289856364618
2018	1.0388281349794943
2019	0.9535520949420139
2020	0.8254481633302554
2021	0.6937802448274673
2022	0.6229956546559862
2023	0.5838621739778893