67% (2004)

74% (2013)

67% (2009)

75% (2018)

73% (2002)

62% (2008)

63% (2002)

66% (1999)

67% (1996)

72% (2018)

70% (2011)

72% (2008)

63% (2004)

60% (2015)

55% (2018)

71% (1993)

71% (2018)

53% (2006)

67% (1996)

68% (2000)