1950

6.6

2002

4.6

2022

7.9

2020

6.0

2016

6.5

1997

6.1

2012

5.1

1972

6.5

2022

7.8

2001

5.2

2004

7.1

1972

6.8

1933

7.2

1982

4.4

1955

7.2

2001

8.9

1996

5.8

2015

5.6

1996

5.9

2014

6.6