62% (2009)

68% (2013)

63% (2012)

72% (2019)

71% (2001)

69% (2013)

67% (1997)

65% (2015)

52% (2003)

61% (1997)

0% (1970)

72% (2010)

59% (2000)

49% (1997)

64% (2007)

64% (2007)

62% (2000)

63% (2007)

72% (2009)

71% (2017)