46% (1968)

49% (1995)

63% (1993)

44% (1990)

63% (1964)

70% (1995)

58% (1994)

0% (1993)

37% (1990)

60% (1993)

50% (1993)

48% (1995)

0% (1989)

50% (1992)

61% (1996)

55% (1994)

53% (1991)

60% (1986)

59% (2005)

53% (1994)