1960

6.3

2006

4.9

2014

6.5

2017

6.9

2005

7.2

1997

5.2

2018

5.5

2008

4.2

2008

6.0

1987

7.3

2025

6.3

1991

6.5

2024

1.0

1987

5.3

1984

6.3

1984

5.8

2002

6.9

2000

7.8

2005

7.7

1991

6.9