2016

6.7

2014

6.6

2011

7.3

1968

5.1

1975

4.5

1939

5.0

6.4

1980

5.9

1964

7.4

2021

10.0

2020

5.6

2009

8.5

1915

10.0

2014

6.6

2021

9.2

2024

7.3

1955

7.2

2020

6.3