69% (2007)

65% (2013)

57% (2017)

69% (2011)

60% (2013)

53% (2020)

72% (2021)

52% (2011)

65% (2010)

68% (2012)

60% (2010)

65% (2005)

48% (2016)

53% (2009)

40% (2014)

57% (2012)

51% (2011)

49% (2012)

66% (2009)

45% (2018)