2016

6.7

2014

5.8

2013

6.7

1952

7.6

1959

7.1

2010

7.0

1989

5.1

2024

6.4

1976

7.2

1980

5.9

1988

5.8

1974

6.3

2023

7.0

1932

6.9

1965

6.2

1928

8.0

2004

6.8

2024

7.4

1985

6.5