1994

6.8

1984

7.0

2007

8.2

2023

7.2

1971

7.6

2022

8.1

2004

7.7

2022

7.5

2014

6.8

1999

6.5

1961

7.5

2007

6.8

2015

7.8

1980

7.3

2024

8.3

2008

7.5

1965

7.6

2025

8.7

2006

7.1

2015

7.4