1990

7.2

2009

8.5

1928

6.0

2020

6.7

1959

7.7

2019

5.4

1989

7.2

2000

7.2

2017

7.6

2010

7.2

1987

7.5

2022

5.6

1992

5.7

1989

5.0

1985

6.2

2007

6.9

1979

6.3

2003

7.3

2011

7.3

1923

6.8