71% (2010)

66% (1996)

73% (2001)

50% (2008)

66% (1993)

56% (2001)

55% (2007)

76% (2008)

85% (2008)

60% (1997)

71% (2005)

0% (2008)

62% (2009)

0% (2001)

40% (1995)

71% (2012)

90% (2009)

68% (2010)

55% (2013)

60% (2012)