1939

7.5

1981

6.8

2000

5.0

1987

7.1

2017

5.1

2013

6.4

1971

8.2

1994

7.0

2008

6.7

1989

7.3

1969

3.8

1991

5.6

2002

6.1

2023

6.7

1973

7.5

1999

6.9

1979

5.3

1997

0.0

2024

0.0

1997

4.9