51% (1996)

43% (1992)

46% (1990)

56% (2003)

51% (1993)

62% (1998)

0% (1995)

33% (1999)

40% (1995)

57% (1998)

47% (1996)

43% (1993)

0% (1991)

53% (1990)

52% (1997)

62% (1990)

47% (1997)

50% (1990)

30% (1996)

32% (1998)