1987

6.4

2015

3.7

1943

7.7

2003

5.4

1998

6.6

1943

6.5

1976

6.4

1955

7.3

1986

7.1

1980

6.3

1999

6.3

1975

6.6

1952

7.7

1991

6.8

1968

4.3

1971

6.0

2019

5.2

2010

5.4

2018

0.0

2008

6.8