44% (1994)

48% (1971)

70% (1973)

53% (1996)

75% (1973)

42% (1998)

56% (1972)

67% (1971)

59% (1984)

73% (1972)

62% (1972)

54% (1983)

56% (1972)

66% (1972)

63% (1971)

70% (1972)

41% (1992)

55% (1980)

35% (1973)

66% (1980)