30% (2013)

10% (2004)

0% (2020)

0% (2015)

0% (2006)

70% (2008)

70% (1992)

0% (1998)

50% (1994)

70% (1999)

70% (1994)

10% (1970)

70% (1997)

60% (2000)

75% (2001)

70% (1993)

0% (1995)

0% (1970)

0% (1995)

0% (1993)