0% (1999)

30% (1995)

50% (1996)

0% (1992)

74% (1999)

0% (1993)

30% (1994)

52% (1997)

63% (1999)

60% (1994)

54% (1991)

56% (1998)

35% (1999)

40% (2003)

75% (1995)

50% (1993)

40% (1997)

48% (1995)

60% (1966)

50% (1999)