63% (1988)

37% (1980)

71% (2005)

43% (1964)

54% (1992)

66% (1996)

50% (1998)

48% (1996)

68% (2010)

52% (2003)

47% (2015)

79% (1999)

60% (1985)

56% (1981)

50% (1983)

38% (2008)

37% (2001)

86% (2018)

88% (2000)

69% (1982)