Year	annual %
1961	2.1512701404478918
1962	2.1733133740132473
1963	2.1681224697493775
1964	2.1851189988399256
1965	2.2027186018636087
1966	2.1840094612933996
1967	2.1779441699047766
1968	2.2019915208465903
1969	2.1700210703520497
1970	2.0714197663757545
1971	1.7341971365551103
1972	1.7518418246055205
1973	2.0332676276255484
1974	2.0536690365001675
1975	2.535971834413317
1976	1.8087649589720485
1977	1.8128944860364982
1978	1.956356185647138
1979	2.0289201097938303
1980	1.647553396396063
1981	1.6112055872273316
1982	2.1014811569002063
1983	2.2360642144653013
1984	2.1824658216297337
1985	2.1076331994585473
1986	2.0165169725392644
1987	1.980635211826126
1988	1.9121237158451692
1989	1.9449592080980267
1990	1.9321694009379229
1991	1.942033640064139
1992	2.1991706089642236
1993	2.346253047934681
1994	2.1899390237637846
1995	2.116652079019758
1996	2.1276152120211407
1997	2.0380660273297053
1998	2.0133319298921037
1999	2.0442308199906165
2000	1.971552549594648
2001	1.8849733380612292
2002	2.021637255135772
2003	2.0244315037010807
2004	1.8968439669904598
2005	1.8478877140569665
2006	1.824240337267625
2007	1.789025375010354
2008	1.6329597522177295
2009	1.6614838205187823
2010	1.6817492491304336
2011	1.7064736875273923
2012	1.7279034848080244
2013	1.7121010922333397
2014	1.6886416061054064
2015	1.6392659751325027
2016	1.646777712162077
2017	1.6436836704285724
2018	1.596244843087291
2019	1.581703810486374
2020	1.5972085329589447
2021	1.5519867977198345
2022	1.456174066082454
2023	1.4143496112533995