1998

6.6

1995

5.1

1972

6.2

1999

6.4

1981

5.6

1938

5.0

1998

4.9

2013

7.6

1994

5.1

1975

5.3

2020

4.7

2015

7.0

1970

5.8

2011

6.2

2010

5.3

2023

6.7

2021

6.4

2016

7.5

2011

6.2

2016

6.3