54% (2002)

45% (2010)

50% (1993)

49% (2000)

45% (2004)

56% (2010)

70% (1994)

43% (2005)

0% (1995)

56% (2002)

60% (2006)

0% (1990)

36% (2003)

60% (2006)

37% (1991)

50% (1990)

67% (1999)

43% (2005)

80% (2002)

48% (1990)