Year	%
2001	5.254468173336113
2002	5.433544914162186
2003	4.9151608000057365
2004	5.025559203001889
2005	5.416779600570607
2006	4.604612754766607
2007	9.747137826961756
2008	4.921164320685441
2009	4.696190075774331
2010	3.896411705797275
2011	5.758507607081137
2012	3.255870775973
2013	4.531418100704599
2014	5.699071578088605
2015	3.256500619392882
2016	1.6830011621043033
2017	2.283386608077505
2018	2.0563301532323592
2019	3.0430747560871927
2020	3.3776928255881113
2021	-3.1905028797409662