6.1

0.0

2025

8.2

2015

7.6

2018

7.3

2013

7.5

1949

6.2

2002

6.7

5.7

2008

4.5

1984

6.7

2000

8.0

2013

6.0

2009

7.7

1991

6.8

2022

8.6