72% (2012)

71% (2018)

60% (2000)

70% (2010)

60% (1996)

72% (2019)

65% (1993)

60% (1994)

76% (2005)

60% (1999)

72% (2008)

87% (2006)

60% (1989)

80% (2003)

0% (2000)

60% (1992)

0% (1970)