52% (2001)

55% (2002)

77% (2002)

54% (1999)

62% (1999)

63% (2007)

68% (2004)

65% (2000)

61% (2001)

55% (2009)

30% (2000)

65% (2006)

64% (1998)

69% (2002)

58% (1999)

61% (1999)

52% (2000)

50% (2000)

60% (2005)

39% (2008)