79% (2004)

70% (2008)

56% (1999)

68% (2009)

51% (1997)

72% (1998)

66% (1997)

68% (1996)

65% (2012)

60% (2006)

62% (2016)

65% (2017)

63% (2012)

55% (2007)

53% (2012)

74% (2014)

68% (2010)

38% (1998)

47% (2005)

73% (2023)