Year	Number
1996	0.0183696802705526
1998	0.0898001343011856
2000	-0.143778055906296
2002	-0.532346844673157
2003	-0.491123884916306
2004	-0.585409641265869
2005	-0.547894060611725
2006	-0.267036706209183
2007	-0.292217820882797
2008	-0.307182461023331
2009	-0.296487033367157
2010	-0.0552531853318214
2011	0.0495045222342014
2012	-0.03442607447505
2013	-0.0713248178362846
2014	0.011560813523829
2015	0.0286054089665413
2016	-0.00907354429364204
2017	-0.0166762806475163
2018	-0.109600901603699
2019	-0.100616596639156
2020	-0.0452786572277546
2021	0.0425535067915916
2022	0.0947811678051949