59% (2007)

51% (2013)

51% (2000)

46% (2004)

37% (2001)

46% (2004)

64% (2009)

54% (2002)

42% (2001)

47% (2001)

52% (2003)

46% (2005)

47% (1999)

47% (2001)

47% (2005)

48% (2002)

62% (2011)

43% (2001)

50% (2003)

27% (2001)