52% (2001)

77% (2002)

54% (1999)

55% (2002)

61% (2001)

65% (2000)

64% (1998)

62% (1999)

30% (2000)

68% (2004)

65% (2006)

55% (2009)

58% (1999)

60% (2001)

44% (2002)

52% (2000)

63% (2007)

61% (1999)

21% (2008)

68% (2002)