68% (2012)

62% (2013)

61% (2012)

42% (2009)

68% (2015)

70% (2016)

55% (2014)

52% (2010)

60% (2012)

70% (2015)

71% (2018)

62% (2007)

70% (2019)

69% (2018)

72% (2013)

55% (2016)

43% (2014)

60% (2016)

61% (2019)

40% (2009)