70% (2005)

57% (1997)

64% (2002)

55% (2011)

55% (2015)

74% (2014)

74% (1995)

67% (2010)

68% (2005)

68% (1995)

58% (2010)

60% (2016)

68% (2011)

53% (2005)

49% (1996)

59% (2015)

65% (2003)

62% (2000)

48% (2001)

35% (1997)