71% (1989)

62% (2010)

61% (1990)

77% (1969)

66% (2008)

64% (2005)

57% (1992)

53% (2010)

70% (1970)

67% (2017)

64% (1998)

70% (1980)

63% (1985)

67% (1988)

62% (2014)

67% (1991)

30% (2009)

65% (1981)

60% (1999)

60% (2011)