68% (2012)

57% (2009)

63% (2010)

63% (2014)

71% (2007)

56% (2010)

59% (2006)

50% (2004)

58% (2000)

61% (2007)

39% (2007)

60% (2014)

65% (2007)

53% (2005)

58% (2004)

58% (2002)

39% (2000)

65% (2007)

0% (2005)

30% (1994)