1988

7.3

1981

6.8

2016

0.0

1979

6.7

2007

2.1

2008

6.4

2017

5.8

1998

5.4

2016

5.6

1980

3.0

2008

6.7

1974

6.9

2019

10.0

2002

4.3

2000

5.3

2003

5.5

1999

4.8

1983

5.7

1975

7.0

1975

6.0