1971

4.6

2014

6.0

2020

5.2

2017

6.9

1926

5.6

2009

8.5

1985

6.4

1990

6.6

2006

7.0

1972

7.1

2024

8.1

2020

5.3

2009

6.2

1966

6.5

1984

7.1

2007

8.2

1968

6.4

2020

9.3

2001

9.9