65% (2002)

44% (1999)

50% (2006)

40% (1998)

75% (2013)

35% (2000)

61% (2005)

52% (1981)

60% (2000)

53% (1981)

70% (1995)

58% (1992)

65% (1979)

73% (2003)

42% (1991)

60% (1974)

38% (2005)

80% (1999)

60% (1998)

35% (1994)