71% (2007)

70% (2019)

75% (2003)

70% (2025)

0% (1995)

81% (1989)

100% (2011)

50% (2000)

74% (1986)

62% (2004)

87% (2012)

59% (2015)

70% (2009)

0% (1970)

72% (2018)

70% (2020)

73% (2019)

59% (2005)

59% (2010)

60% (2014)