62% (2005)

36% (2011)

51% (1994)

60% (2004)

54% (2011)

67% (2007)

68% (2009)

45% (2002)

61% (2001)

50% (1998)

54% (1998)

53% (2003)

60% (1998)

57% (2013)

54% (1993)

55% (1999)

64% (1999)

60% (1997)

48% (1998)

49% (2005)