Year	Number
1996	0.829836368560791
1998	0.974659562110901
2000	0.989812433719635
2002	1.05434656143188
2003	0.992518246173859
2004	0.842710494995117
2005	0.885737657546997
2006	1.03071081638336
2007	1.04552268981934
2008	1.06214451789856
2009	1.10579407215118
2010	1.14654517173767
2011	1.1214314699173
2012	1.0609667301178
2013	1.0852632522583
2014	1.10788881778717
2015	1.14342188835144
2016	1.16303431987762
2017	1.16740810871124
2018	1.19086337089539
2019	1.22519993782043
2020	1.30727386474609
2021	1.28700017929077
2022	1.2803338766098