73% (2003)

62% (1996)

44% (2000)

61% (1998)

59% (2004)

37% (2002)

68% (2003)

65% (2003)

54% (1998)

54% (2001)

51% (1994)

68% (1996)

62% (2000)

60% (1997)

48% (2002)

36% (1995)

58% (1997)

56% (1997)

41% (1997)

34% (1994)