60% (2015)

59% (2006)

59% (2005)

57% (2016)

43% (2008)

48% (2016)

60% (2012)

50% (2006)

41% (2007)

40% (2005)

66% (2013)

54% (2002)

58% (2001)

57% (1997)

53% (2014)

40% (2001)

70% (2005)

30% (2009)

0% (2003)

0% (1999)