1969

7.6

2016

6.5

2009

5.9

2003

7.0

2020

7.5

2023

0.0

2000

6.1

2008

6.1

1952

7.9

0.0

2008

5.0

2007

5.4

2006

7.1

1959

7.3

1977

6.9

2001

6.0

2005

6.6

1940

6.8

1968

2.9

2006

6.9