69% (2007)

56% (2014)

78% (2008)

63% (2005)

73% (2019)

58% (1993)

66% (2006)

70% (1992)

65% (1993)

58% (1993)

73% (1997)

75% (2010)

48% (2009)

52% (1996)

10% (1993)

75% (1994)

57% (1995)

68% (2012)

57% (1994)

53% (2002)