71% (2004)

70% (2001)

60% (2005)

50% (2018)

65% (2006)

73% (2019)

62% (2003)

53% (2019)

45% (1987)

59% (2015)

52% (2004)

49% (2002)

49% (2003)

0% (2006)

50% (2000)

49% (1976)

0% (1938)

80% (2007)