71% (2003)

63% (1990)

65% (1985)

50% (2000)

57% (2011)

62% (2011)

63% (2004)

68% (2019)

59% (2013)

56% (1993)

60% (1996)

66% (1998)

63% (2016)

60% (2008)

59% (2013)

68% (2015)

63% (2012)

71% (1971)

68% (2011)

75% (2020)