2006

6.4

1978

6.9

2012

6.0

2010

7.1

2019

9.8

1966

5.8

1976

4.7

2007

7.7

1969

7.6

5.4

1984

7.0

2010

7.5

2023

5.6

2024

7.0

2012

9.3

1996

7.8

2015

8.0

2021

7.7