Year	annual %
1961	3.1998884188958527
1962	3.092642049636879
1963	3.0632690067457844
1964	3.026265874544265
1965	2.9386310348214977
1966	2.6511700920168693
1967	2.6598722323295476
1968	2.6034948030133904
1969	2.5096922396959513
1970	2.3758173719392772
1971	2.293334615593352
1972	2.2974225477478996
1973	2.2602250110440423
1974	2.234317177171178
1975	2.1762689998199676
1976	2.1657930251955264
1977	2.1215541597325682
1978	2.076706297270988
1979	1.8980772595801056
1980	1.7459701273065775
1981	1.8995485547123252
1982	1.9247291933310464
1983	1.9275008749153955
1984	1.9895597490518213
1985	1.936080577275476
1986	1.8356016080407471
1987	1.7858151329868406
1988	1.7302269715143268
1989	1.3451887176199477
1990	0.9210509411656176
1991	0.7798665874338297
1992	0.5414587970896036
1993	0.4220266056285169
1994	0.3255598778570743
1995	0.23350859795232282
1996	0.2396204760224805
1997	0.22133284270233844
1998	0.20773209938491277
1999	0.15251985469410556
2000	0.06833593037013941
2001	0.08629309733669288
2002	0.1310518974231769
2003	0.25590519138386014
2004	0.32168027878489625
2005	0.3477055795200812
2006	0.38230732845052273
2007	0.3488815786189008
2008	0.5398582001272274
2009	0.6523010438201879
2010	0.6935260060848378
2011	0.7207472488843365
2012	0.6672777151298277
2013	0.7091816937885795
2014	0.7201731366996711
2015	0.7439011531732262
2016	0.742002603349718
2017	0.7014586424489977
2018	0.6814256897181821
2019	0.7107881381347596
2020	0.5450736517842216
2021	0.42869719425102915
2022	-0.9966402293066494
2023	0.28342354831923444