68% (2005)

52% (2014)

69% (2015)

59% (2018)

69% (2017)

72% (1996)

58% (2013)

67% (2005)

55% (2010)

66% (2018)

58% (1999)

60% (2017)

50% (2007)

59% (2002)

53% (2007)

66% (2001)

57% (2011)

49% (2012)

47% (2002)

74% (2007)