1990

6.4

1998

6.2

1985

6.8

1999

6.0

1982

6.7

1988

6.3

2006

5.5

1974

7.9

1949

5.6

1987

6.1

2016

5.7

1961

6.1

1929

4.2

1980

0.0

2025

6.4

1928

7.9

1964

4.9

1936

4.6

1936

3.0

2022

7.3