1987

6.8

2005

7.4

2017

6.3

2023

7.7

2021

7.4

1993

6.0

1945

6.2

1964

6.9

1929

6.3

2024

5.7

2018

3.0

1994

4.2

1940

4.2

1984

2.0

1960

6.2

2012

5.9

2025

7.1

2023

6.3

2020

5.8

2013

5.7