1985

6.8

2018

5.5

2024

7.2

6.6

2006

5.9

7.0

2018

6.3

2021

5.7

2020

6.4

2014

6.9

2012

5.7

1989

9.6

1993

5.6

1896

5.2

2019

7.5

2012

6.0

2008

6.7