51% (1996)

45% (1995)

56% (2003)

51% (1993)

50% (1993)

65% (2001)

56% (1991)

46% (1990)

20% (1993)

60% (2000)

29% (1998)

47% (1996)

53% (1990)

0% (1992)

48% (1999)

62% (1990)

62% (1998)

0% (1995)

52% (1999)

58% (1990)