1949

6.8

2015

5.3

2005

6.1

2016

5.8

2007

6.0

2001

5.6

2008

6.2

2021

6.2

2002

5.3

2014

5.8

2007

7.2

2008

7.6

2005

6.5

2000

6.4

1985

6.6

2017

7.3

2019

6.7

2023

7.5

2016

6.3

2019

6.5