63% (1999)

60% (2003)

50% (1998)

63% (2013)

47% (2005)

66% (1998)

50% (2009)

60% (1998)

55% (1999)

69% (2000)

67% (2002)

36% (2003)

60% (1985)

57% (1996)

71% (2001)

40% (1997)

58% (1997)

58% (1997)

70% (1998)

48% (1998)