68% (2000)

56% (2002)

60% (2004)

72% (1998)

62% (2002)

64% (2006)

67% (2010)

59% (1997)

69% (2012)

55% (2014)

42% (2015)

85% (2013)

50% (2009)

50% (1998)

40% (1996)

68% (2003)

0% (1997)

0% (2008)

0% (2004)

0% (1996)