Year	base year varies by country
1990	6.8339948141646
1991	8.29986048847308
1992	10.6440782603671
1993	14.0124845493167
1994	22.8250320096639
1995	34.6392461711543
1996	74.6561376046117
1997	100
1998	118.890286702572
1999	150.030874789928
2000	194.219205953543
2001	209.75072951237
2002	279.016452993277
2003	376.487379152837
2004	504.318866039764
2005	653.617722461968
2006	770.643501976161
2007	889.696191972166
2008	1157.78347755699
2009	1248.45721669076
2010	1822.03927034193
2011	2334.92858378704
2012	2663.2062350756
2013	3608.7156795691
2014	5068.09798693893