55% (1999)

53% (1976)

48% (2004)

62% (2001)

56% (2017)

58% (2007)

51% (1991)

58% (2002)

51% (1988)

49% (2010)

52% (2013)

49% (1996)

56% (2010)

44% (1981)

0% (2016)

40% (1988)

60% (1960)

0% (2017)

50% (1979)