1991

6.6

1988

6.2

2019

7.3

1972

6.8

2011

7.6

1977

8.2

1980

8.4

1931

7.5

2020

7.6

2018

7.4

1960

7.6

1968

6.8

2019

7.4

2024

8.0

1983

8.2

2006

7.0

2016

6.0

2021

7.0

1989

5.3

2015

7.2