70% (2007)

49% (2013)

60% (2009)

54% (2015)

34% (2009)

53% (2010)

63% (2015)

58% (2014)

80% (2008)

59% (2013)

58% (1997)

57% (2011)

63% (2011)

0% (2018)

30% (2013)