1931

7.2

1990

6.3

1949

6.5

2022

8.3

2001

5.1

2005

4.7

1995

5.2

2017

5.8

1981

6.6

1986

6.0

2005

5.4

1968

7.6

2019

5.3

2006

6.4

2023

4.2

2020

7.2

1985

7.0

2007

6.3

1959

4.2

1982

5.2