1974

0.0

2006

7.8

2001

7.0

1993

6.6

1968

7.1

2000

2.0

1999

7.3

2008

7.0

2011

5.4

2022

5.5

1978

0.0

1981

7.6

1991

7.1

1951

6.4

2008

6.4

1992

6.8

1958

5.5

2020

7.4

2025

8.0

2012

5.6