59% (1994)

60% (2008)

65% (2019)

70% (2009)

57% (2018)

59% (2014)

62% (2011)

59% (2010)

51% (2008)

67% (2009)

61% (1994)

68% (2007)

61% (2014)

62% (2001)

69% (2002)

67% (1998)

65% (1997)

63% (1987)

66% (1992)

71% (1982)