67% (2013)

69% (2011)

69% (2009)

70% (2019)

75% (1999)

72% (2005)

60% (1999)

70% (2000)

67% (2008)

67% (1996)

68% (2009)

72% (2012)

67% (2016)

72% (2002)

65% (2001)

75% (2008)

64% (1999)

71% (2006)

62% (2006)

62% (2007)