1978

6.4

1990

5.0

2023

9.2

1999

7.2

2024

6.0

1939

5.4

2008

7.5

2007

7.7

1998

9.0

2014

6.5

2009

6.6

2001

7.0

1987

6.3

2011

5.3

2007

7.5

2011

6.3

2022

7.8

2020

7.5