2008

6.1

2007

5.9

2008

7.9

2010

7.2

2012

5.7

1998

5.1

1958

6.8

2016

6.0

1968

6.9

2022

5.5

2025

6.6

2020

6.9

2007

6.9

1980

5.3

1984

7.0

1989

9.2

1994

7.4

1992

7.7

1988

6.2

2025

8.0