2003

6.3

1993

6.9

2019

5.7

2020

5.3

2014

7.8

2025

7.2

2008

7.4

2014

8.0

2014

6.5

1988

5.5

2017

7.5

1992

6.5

2022

6.0

8.1

2022

5.1

1973

7.2

1964

7.5

2020

7.0

5.4

1999

6.6