63% (2011)

63% (2004)

68% (2011)

69% (1997)

72% (2000)

70% (2009)

67% (2002)

65% (1999)

67% (2002)

59% (2018)

71% (2017)

65% (2015)

70% (2002)

68% (2007)

68% (2013)

61% (2009)

67% (2004)

50% (2003)

57% (2005)

70% (2007)