53% (1994)

56% (1996)

71% (1991)

63% (1991)

56% (1991)

48% (1994)

66% (1995)

58% (1991)

55% (2005)

61% (1999)

53% (1993)

56% (1991)

46% (1997)

35% (1999)

62% (2003)

50% (2002)

69% (1993)