Year	% (cumulative)
1991	8.82182025909424
2001	33.4103889465332
2006	22.2565689086914
2007	24.2066993713379
2008	24.2758121490479
2009	29.6292057037354
2010	30.167875289917
2011	32.5869789123535
2012	34.0788879394531
2013	36.745246887207
2014	38.3838729858398
2015	36.1409645080566
2016	38.6079483032227
2017	37.3711776733398
2018	39.8439407348633
2019	43.0200996398926
2020	42.3787956237793
2021	46.1569862365723
2022	47.0335731506348