1977

0.0

2005

7.2

1999

6.4

2000

5.9

1961

8.1

2008

5.5

1994

4.7

2013

6.1

2008

7.4

1997

5.7

1970

6.5

2022

6.0

2019

7.3

2006

6.2

1958

5.8

2021

7.4

2005

6.5

1960

5.2

1993

7.5

1996

7.4