76% (1997)

70% (2011)

70% (1996)

71% (1999)

77% (2002)

68% (2004)

71% (1992)

50% (2007)

48% (2006)

59% (2010)

71% (1999)

66% (1991)

60% (2011)

64% (2008)

52% (1997)

68% (2006)

10% (2017)

62% (1999)

60% (2007)

45% (1993)