64% (2011)

59% (2014)

37% (2000)

63% (1995)

56% (2005)

60% (1999)

62% (2005)

64% (1997)

56% (2005)

65% (1999)

66% (2005)

49% (2004)

64% (2011)

61% (2013)

55% (2005)

48% (2011)

35% (2011)

55% (2000)

45% (1993)

45% (1994)