Year	%
1997	14.182534471437952
1998	16.76145868183339
1999	14.66284987277353
2000	15.581098339719022
2001	14.98844503136348
2002	16.846652267818566
2003	19.536903039073792
2004	19.872537659327907
2005	20.88039386041123
2006	21.02402745995423
2007	21.859799713876964
2008	23.123037396517276
2009	23.936471922858765
2010	24.29771213437591
2011	24.374288964732646
2012	26.080773606370876
2013	27.516778523489926
2014	29.19831223628692
2015	29.78465271458903
2016	30.84269662921348
2017	31.029496818970504
2018	33.007812500000014
2019	33.547306726207104
2020	34.76754259312737
2021	36.041787579802666
2022	36.864896073903
2023	36.80908276068121