1990

6.9

1979

7.4

2016

8.2

1984

8.5

2024

8.1

2017

6.8

2022

7.2

2017

7.0

1977

8.2

2023

6.5

2017

8.4

2020

9.1

2019

8.3

2021

8.5

1983

8.1

2016

7.0

2016

7.8

1972

7.7

2004

5.4

2022

7.7