60% (2002)

60% (1998)

10% (1989)

73% (2008)

0% (1991)

40% (2000)

35% (1988)

64% (2005)

70% (1995)

0% (1989)

60% (1985)

50% (1985)

80% (1998)

45% (2000)

0% (1989)

55% (1981)

0% (2006)

61% (2000)

42% (2008)

59% (2008)