1997

7.8

2003

5.2

2015

8.3

1998

5.0

2018

6.8

2020

5.6

1971

3.0

1967

5.0

2005

8.4

0.0

2000

3.5

1931

4.5

2011

4.3

2015

7.9

2012

5.2

1936

4.3

2024

5.5

1975

4.9