69% (2011)

53% (2022)

63% (2008)

51% (2007)

65% (2009)

64% (2008)

71% (2015)

64% (2024)

62% (2016)

59% (2013)

61% (2009)

67% (2013)

55% (2005)

62% (1985)

69% (2015)

66% (1976)

72% (1972)

52% (1985)

40% (2002)

59% (1923)