70% (2011)

70% (1996)

77% (2002)

76% (1997)

71% (1999)

68% (2004)

71% (1992)

50% (2007)

10% (2017)

64% (2008)

60% (2011)

48% (2006)

71% (2007)

71% (1999)

50% (1991)

59% (2010)

52% (2017)

68% (2006)

60% (2007)

66% (1991)