2021

7.5

2015

6.3

2009

6.1

1972

7.1

1959

8.0

1998

5.3

1956

7.1

2016

6.7

1951

7.9

2008

7.2

2011

5.7

2007

7.4

2006

8.0

1958

8.2

2015

6.7

1942

5.8

2001

7.0

1980

6.8

2012

6.0

1998

6.9