1992

6.9

2019

8.5

1998

5.0

2020

6.7

2003

7.3

2019

8.0

2002

5.9

2018

6.7

2020

6.8

2016

7.4

1960

7.4

2013

6.0

1964

8.2

2021

6.6

2019

7.2

2022

6.4

2024

7.1

1984

7.2

2019

7.3

1991

7.5