1980

6.8

1983

7.3

1972

6.5

1975

6.3

1989

6.7

1974

5.5

2022

4.0

2019

0.0

2000

6.4

1994

5.2

2003

6.5

0.0

2008

5.3

1956

6.0

1968

7.9

2010

6.2

2020

8.8

1988

0.0

1998

4.8

2010

5.7