67% (2010)

60% (1991)

80% (1990)

46% (1995)

48% (1998)

47% (1995)

62% (2003)

54% (2004)

57% (1997)

58% (2008)

56% (2004)

43% (1997)

0% (1992)

96% (1996)

53% (1999)

65% (2002)

56% (1997)

43% (2005)

60% (1997)

50% (1994)