72% (2007)

54% (1999)

57% (2011)

77% (2005)

73% (2015)

65% (2016)

66% (2000)

71% (2018)

63% (2000)

61% (2001)

69% (2012)

70% (2005)

72% (2001)

60% (1997)

65% (1997)

73% (2011)

71% (2017)

63% (2002)

67% (2004)

62% (2003)