Year	Water exploitation index (WEI) %
2000	30
2001	27.3
2002	22.6
2003	22.4
2004	25.1
2005	31
2006	27.3
2007	28.7
2008	32.4
2009	29.4
2010	25.8
2011	27.4
2012	34.1
2013	36.3
2014	35.9
2015	37.9
2016	34.6
2017	41.2