0% (1970)

64% (2003)

58% (2016)

45% (2007)

82% (1998)

62% (2016)

66% (2005)

59% (1999)

58% (2009)

64% (2005)

62% (2012)

67% (2006)

64% (2005)

73% (2009)

67% (2008)

52% (1997)

54% (2012)

69% (1996)

72% (2011)

64% (2011)