63% (2003)

68% (2014)

69% (1999)

56% (1996)

52% (1997)

42% (2000)

63% (1998)

65% (2001)

62% (2000)

69% (1993)

48% (1996)

15% (1994)

42% (2000)

54% (1993)

38% (2000)

65% (1995)

50% (1990)

30% (1992)

50% (2001)

58% (2001)