74% (1995)

60% (1997)

59% (1998)

70% (1995)

63% (1998)

40% (1996)

60% (1993)

65% (1995)

49% (1997)

63% (1996)

65% (1998)

59% (1991)

76% (2020)

73% (1999)

61% (1997)

66% (1994)

58% (1998)

63% (1995)

42% (1996)

68% (1993)