76% (2001)

63% (2004)

61% (2007)

67% (2006)

59% (2005)

69% (2015)

31% (1980)

53% (2001)

51% (2000)

54% (2002)

67% (2022)

70% (1970)

63% (1998)

75% (1988)

70% (1968)

70% (1990)

62% (2004)

66% (2018)

63% (1976)

61% (2025)