2014

5.6

2009

8.5

2018

6.7

1989

5.4

2004

6.1

1961

6.9

1988

5.9

2003

7.3

2019

6.7

2013

7.7

1939

7.6

1938

7.0

1990

7.5

1989

5.1

2011

6.7

1940

7.8

2023

7.3

1970

6.4

2015

6.3

2023

6.6