67% (1976)

68% (2015)

65% (2013)

44% (1989)

54% (2010)

44% (2016)

52% (1966)

53% (2021)

62% (1956)

65% (2007)

68% (2014)

53% (2007)

65% (2006)

57% (2002)

57% (1994)

58% (2020)

63% (2006)

33% (2011)

52% (1999)

60% (2008)