Year	Number
1996	-0.0355938076972961
1998	0.172034457325935
2000	0.488340973854065
2002	0.524093270301819
2003	0.424307197332382
2004	0.338918656110764
2005	0.576530277729034
2006	0.624771058559418
2007	0.519775092601776
2008	0.670135021209717
2009	0.902352452278137
2010	0.845954716205597
2011	0.750734090805054
2012	0.952364325523376
2013	0.952170729637146
2014	0.862476110458374
2015	0.743875920772552
2016	0.766114711761475
2017	0.695322930812836
2018	0.704719603061676
2019	0.70669150352478
2020	0.978387594223022
2021	0.905077397823334
2022	0.919315934181213