56% (1991)

0% (2004)

45% (2003)

70% (2010)

80% (2008)

63% (2008)

56% (2013)

58% (2004)

60% (2001)

70% (2004)

60% (2007)

80% (2008)

0% (1987)

0% (1951)

50% (2002)

43% (1965)

0% (2004)

70% (2003)

0% (1996)

40% (2009)