1977

6.6

1977

5.5

1979

5.3

2001

5.0

1997

4.6

2021

7.7

1981

5.8

1982

5.4

2020

8.1

2000

6.2

1975

6.4

1977

2.0

1999

6.7

2019

6.0

1983

5.2

2008

2.0

1976

6.3

1979

5.2

1982

6.0

2015

5.3

1981

6.9

2005

6.3

1982

6.1

1979

6.3

1982

4.5