37% (2013)

54% (2021)

53% (2023)

39% (2024)

33% (2012)

62% (1978)

47% (2010)

37% (2009)

58% (2022)

52% (2016)

31% (2006)

49% (2020)

36% (2010)

41% (2015)

63% (2021)

53% (2021)

32% (2005)

51% (2005)

53% (2017)

40% (2020)