2013

6.1

1999

6.6

2015

6.6

2008

5.7

2016

7.4

1990

6.6

2021

9.2

2018

6.3

2011

7.3

2023

6.2

1975

7.1

1949

6.2

2003

6.6

2001

6.7

2003

6.2

1996

8.1

2020

6.1

2015

6.8

2022

8.0

2021

10.0