2023

6.1

2013

6.1

1999

6.5

2024

5.8

2023

6.3

7.2

2020

6.8

2020

7.3

1968

6.4

2014

6.5

2023

6.0

2008

5.6

1972

7.7

1970

5.3

1931

5.8

2020

5.8

1993

4.3

2009

5.7