1972

6.4

2021

6.8

1996

7.5

1971

6.4

2020

8.4

6.8

1953

7.3

2019

6.5

1988

6.2

2022

6.7

1991

7.0

2009

7.2

2013

6.1

2021

8.3

2005

5.4

2001

6.1

1942

7.0

2002

4.5

2022

7.3

2020

7.0