1982

6.7

2002

6.9

1970

3.7

1958

7.1

2018

7.6

1969

5.5

2014

7.0

1952

6.6

1979

6.8

2010

7.1

2019

7.3

2017

4.9

1956

7.1

1965

7.4

1976

7.6

1990

6.0

1997

5.7

1985

6.0

2003

7.2

2008

7.2