72% (2016)

62% (2013)

59% (2016)

53% (1998)

0% (2003)

58% (2008)

51% (2001)

0% (1970)

72% (2018)

64% (2015)

60% (2001)

30% (2003)

40% (2018)

68% (2016)

0% (1991)

66% (2007)

70% (1999)

59% (1996)

70% (1997)

53% (2003)