67% (2014)

62% (2017)

61% (2018)

67% (2020)

69% (2021)

63% (2011)

56% (2009)

54% (2011)

63% (2010)

60% (2009)

52% (2011)

43% (2012)

62% (2006)

54% (2010)

49% (2007)

64% (2011)

48% (2005)