2001

6.8

1994

6.7

2005

6.0

2015

6.1

2016

6.5

1952

7.3

1942

7.0

2000

7.2

2004

6.4

1980

5.9

2013

6.4

1992

4.5

1984

6.0

2020

6.9

2023

0.0

2025

7.0

2022

4.0

2015

6.7

2015

2.2

2014

6.3