68% (1995)

53% (2002)

73% (2004)

60% (1999)

0% (2001)

0% (1970)

74% (1983)

55% (1995)

0% (1995)

57% (1993)

0% (1970)

100% (1995)

30% (1993)

0% (1993)

40% (1993)

70% (1997)

85% (1993)

40% (2004)

64% (1999)

0% (2000)