63% (1977)

10% (1997)

58% (2009)

65% (2013)

72% (1989)

71% (2021)

59% (2012)

69% (1983)

67% (1976)

61% (1995)

70% (1994)

71% (2022)

50% (1968)

68% (2001)

40% (1995)

67% (1970)

63% (1997)

71% (1997)

62% (2004)

0% (1989)