57% (2001)

66% (1991)

62% (1994)

53% (2001)

58% (1997)

66% (1997)

62% (1997)

62% (1993)

60% (2012)

66% (1996)

66% (1994)

68% (1998)

53% (1995)

49% (1999)

65% (1999)

54% (1993)