1985

7.2

1992

3.8

2025

7.0

2023

6.1

2024

6.6

1931

8.3

1975

6.0

1990

4.7

2015

0.0

2019

5.7

2020

4.2

1992

6.3

1996

5.3

1999

5.5

1920

5.0

1941

0.0

2017

5.9

1947

3.0

1934

3.0

1940

6.0