37% (2007)

57% (1996)

48% (1998)

45% (1992)

52% (1996)

50% (1996)

30% (1997)

52% (1997)

54% (1996)

30% (1994)

44% (1997)

50% (1995)

90% (1996)

46% (1996)

54% (1995)

75% (1994)

40% (1992)

42% (2004)

20% (1993)

77% (2003)