1979

7.7

1961

7.3

1963

7.0

1964

7.0

2018

7.1

2005

7.0

2000

7.3

2017

6.3

2007

6.9

1994

8.5

1930

1.0

2020

4.5

1998

7.2

2014

4.7

2023

6.8

2018

6.5

2006

7.4

2000

7.0

1956

0.0

1995

6.6