1904

7.2

2018

8.2

2017

7.0

2016

7.4

2003

7.3

2001

7.9

1998

6.8

2009

6.6

1958

7.8

1990

6.1

1981

7.3

1971

6.7

1983

7.2

1954

8.5

2023

7.0

2004

6.8

1999

7.7

2021

7.5

1987

8.1

2007

7.3