2013

6.0

1999

6.2

1989

5.5

1988

6.4

1933

6.2

2021

6.1

2017

6.6

2015

7.6

2009

5.9

2002

4.4

2022

4.9

1984

7.0

2004

6.9

2018

6.5

1942

6.8

1980

5.9

2013

6.7

1989

6.2

2007

6.7

1982

7.1