74% (1996)

64% (2000)

58% (2001)

53% (2008)

76% (1994)

60% (2003)

77% (2001)

55% (2006)

48% (2013)

71% (1996)

65% (1997)

47% (2011)

65% (2011)

55% (2010)

52% (2018)

60% (2000)

69% (2007)

51% (2003)

70% (2009)

75% (2005)