1971

7.1

2010

5.5

2009

8.5

1963

5.9

1989

9.3

2010

6.4

2003

6.0

1972

10.0

1992

5.0

1923

8.5

1999

7.4

2007

6.1

2020

7.4

2003

8.8

2018

6.9

2021

7.2

1954

6.6

0.0

2009

6.5