78% (2001)

60% (2003)

66% (2002)

61% (2002)

73% (1996)

58% (2003)

52% (1994)

64% (1992)

50% (2000)

54% (2000)

62% (1998)

70% (2015)

64% (1996)

75% (1994)

66% (1995)