2014

6.9

1985

7.2

1949

6.2

1998

6.4

2019

6.7

2017

6.6

1980

6.4

2015

6.7

1940

6.2

2006

6.8

2000

6.6

1993

6.5

1953

5.6

1969

6.6

1985

6.1

1975

5.7

2001

6.8

1956

6.5

1993

6.6

2005

5.2