1927

7.5

1928

7.2

1924

7.6

1928

7.3

1991

5.0

1979

6.1

2019

7.8

1991

6.2

2007

6.0

1978

5.0

2018

7.0

2019

4.2

2000

6.5

2002

5.8

1994

5.9

2021

6.8

2005

6.2

2005

7.5

2003

6.7

2015

6.2