6.1

2015

6.4

1975

4.5

1997

6.3

2022

5.6

1974

6.4

2011

7.2

1993

6.2

2009

8.5

1999

7.1

1974

10.0

2022

5.3

1994

8.9

1940

6.0

1944

6.3

1980

5.0

2024

10.0

2012

9.7