1994

6.4

1999

5.2

1980

5.4

2002

5.0

2001

7.8

2017

7.6

2022

8.2

2019

8.5

2019

7.7

1954

8.4

2018

7.4

2019

7.2

2018

7.0

2017

7.3

2018

8.2

2018

7.4

2004

7.5

2019

7.8

2018

7.6

2019

7.4