77% (2010)

48% (2008)

53% (2012)

64% (2004)

60% (2011)

48% (2005)

0% (1970)

45% (2016)

51% (2017)

35% (2006)

51% (2013)

62% (2018)

53% (2009)

55% (2018)

56% (2012)

54% (2007)

70% (2018)

54% (2014)

53% (2014)

66% (1996)