71% (2004)

50% (2018)

72% (2019)

70% (2001)

65% (2006)

59% (2005)

53% (2019)

58% (2015)

61% (2003)

51% (2004)

50% (2002)

45% (1987)

49% (1976)

49% (2003)

50% (2000)

0% (2006)

0% (1938)

80% (2007)