Year	annual %
1961	1.3508953706201225
1962	1.7713506653421547
1963	2.1291362643884497
1964	2.0983304854015046
1965	2.078320271668616
1966	2.1112332093734523
1967	2.0563523153257677
1968	2.0698486811423464
1969	2.1017874478328054
1970	2.0925275742661
1971	2.1061411860846704
1972	2.0085116109808183
1973	1.9880808720669876
1974	1.9355743895175408
1975	1.8553902687083763
1976	1.7954352389495654
1977	1.7557052903233625
1978	1.7546857173466037
1979	1.7704762960604654
1980	1.7548614555154387
1981	1.7687781396077185
1982	1.8091631626617044
1983	1.785491032695802
1984	1.7454362642532573
1985	1.75049586895355
1986	1.771774537743127
1987	1.7885481693815848
1988	1.7732338954860296
1989	1.744221338096267
1990	1.7454809185563107
1991	1.6839989622802136
1992	1.6280241882923576
1993	1.5805559615972555
1994	1.5373184313898918
1995	1.501055576532167
1996	1.4815481704731042
1997	1.4536191281883788
1998	1.4191611418444836
1999	1.3807096418197062
2000	1.3530798072267913
2001	1.3352287532035376
2002	1.3137010186913045
2003	1.2889125902504617
2004	1.274586957875698
2005	1.2633748805832283
2006	1.2571047073219432
2007	1.2421861281515447
2008	1.248039481611002
2009	1.2377837796990576
2010	1.224090585939706
2011	1.206532342863369
2012	1.239613318243471
2013	1.2326313987471593
2014	1.2151133528341518
2015	1.1882319396712546
2016	1.1710180762132296
2017	1.150105544262317
2018	1.1094956711292951
2019	1.064417868991825
2020	1.014462648223315
2021	0.865485516075239
2022	0.7939143013088454
2023	0.9231052512477618