57% (1998)

64% (2000)

50% (2012)

58% (1998)

51% (1998)

73% (2008)

64% (1996)

69% (2005)

53% (1997)

54% (1996)

53% (1998)

60% (1999)

62% (2002)

51% (1999)

61% (2002)

50% (1998)

54% (2000)

54% (1996)

50% (1998)

62% (2003)