40% (1999)

36% (2003)

35% (2007)

20% (1985)

10% (1995)

60% (1996)

40% (2004)

60% (1999)

54% (1999)

0% (1995)

0% (1985)

0% (1993)

66% (1995)

10% (1995)

25% (2005)

60% (1987)

70% (2007)

20% (1983)

0% (1990)

85% (1986)