50% (2008)

54% (2016)

53% (2007)

55% (2011)

17% (1986)

69% (2011)

60% (1964)

29% (2010)

54% (2014)

61% (2017)

62% (1982)

67% (2001)

85% (1975)

49% (2006)

60% (2007)

69% (1996)

38% (2008)

55% (1992)

70% (2010)

44% (1997)