1992

6.2

1977

7.3

2016

7.4

1971

8.1

1991

5.9

2017

4.2

2017

7.1

2010

5.3

2015

6.7

2002

6.8

1987

5.8

2000

6.0

2002

5.3

1972

7.3

1944

6.6

2011

3.8

2014

4.0

1987

5.4

1970

3.5

2019

8.3