2019

7.5

1984

5.9

1981

7.3

1998

7.2

1991

6.5

1986

7.7

2007

7.6

2018

6.8

2022

5.9

2023

7.4

2021

7.7

2005

6.0

1977

6.1

2004

7.6

1977

5.0

2025

5.0

2013

7.3

1967

9.0

1979

0.0

1971

7.4