68% (2004)

45% (2005)

65% (2004)

55% (1997)

52% (2007)

56% (1998)

54% (2003)

52% (2013)

52% (2006)

60% (2009)

48% (2006)

48% (2006)

50% (2005)

52% (2001)

52% (2012)

50% (2007)

52% (2011)

52% (2011)

50% (2004)

82% (2013)