year	geo	efficiency_rate
1990	EU15	78.0
1991	EU15	78.0
1992	EU15	86.3
1993	EU15	87.0
1994	EU15	87.0
1995	EU15	94.8
1996	EU15	88.6
1997	EU15	84.9
1998	EU15	88.2
1999	EU15	85.1
2000	EU15	86.4
2001	EU15	85.6
2002	EU15	84.6
2003	EU15	75.9
2004	EU15	76.8
2005	EU15	82.1
2006	EU15	79.9
2007	EU15	79.6
2008	EU15	79.2
2009	EU15	78.7
2010	EU15	78.8
2011	EU15	75.7
2012	EU15	77.2
1990	EU28	75.7
1991	EU28	79.2
1992	EU28	78.5
1993	EU28	83.5
1994	EU28	81.2
1995	EU28	84.7
1996	EU28	83.8
1997	EU28	81.8
1998	EU28	84.7
1999	EU28	83.9
2000	EU28	85.4
2001	EU28	85.7
2002	EU28	84.6
2003	EU28	79.8
2004	EU28	79.8
2005	EU28	82.9
2006	EU28	81.1
2007	EU28	81.9
2008	EU28	82.2
2009	EU28	81.0
2010	EU28	81.3
2011	EU28	79.7
2012	EU28	81.0