1989

5.4

1994

5.7

2004

5.9

2019

6.2

1972

6.4

2020

6.1

1982

5.7

2021

7.2

2024

6.1

1995

7.7

2024

7.1

1958

6.6

2025

6.5

1979

6.7

2018

6.9

2024

9.9

2002

5.4

2017

7.4

2016

6.0

2014

7.5