70% (2015)

90% (1992)

90% (2004)

40% (1999)

30% (1998)

20% (2005)

0% (1994)

0% (2010)

85% (1990)

10% (2004)

40% (1994)

70% (1995)

20% (1995)

60% (2003)

70% (2008)

30% (2013)

40% (2003)

70% (1991)

0% (1990)

20% (2010)