69% (1983)

57% (2017)

65% (1990)

71% (1969)

59% (2006)

63% (2013)

61% (2018)

72% (2002)

44% (2011)

69% (2001)

75% (2013)

60% (2016)

65% (1993)

60% (1996)

62% (2001)

52% (2015)

52% (2013)

70% (2006)

81% (1981)

55% (2009)