0% (1970)

10% (2008)

0% (2003)

75% (2002)

64% (2000)

85% (2003)

72% (2005)

72% (2007)

28% (2005)

53% (2013)

72% (1989)

59% (2015)

72% (2015)

68% (2012)

65% (2013)

0% (2006)

57% (2013)

100% (2004)

55% (2017)

74% (2018)