1952

7.4

2006

7.0

1925

8.0

1931

7.1

1995

6.6

1994

6.4

2007

5.9

2004

7.9

2000

7.2

2020

10.0

1972

7.3

2025

0.0

1969

5.8

2004

6.1

2004

6.2

2007

7.8

1993

5.7

1985

6.2

1988

5.8

2015

5.9