2017

7.4

1984

6.3

2020

6.1

1993

6.5

1967

6.7

1966

6.6

1987

6.8

1989

7.9

1949

7.5

2001

6.8

2010

7.0

1959

4.2

1939

6.2

2012

6.0

1986

7.1

2003

6.0

2001

8.0

2010

6.6

2024

6.4