2007

7.8

2020

6.1

2003

6.6

2012

5.7

2015

6.4

2016

6.7

2012

9.3

2017

6.4

1993

5.4

1977

3.9

2002

4.0

1975

4.5

2004

5.0

6.4

2011

10.0

2001

3.5

1912

6.0

2022

10.0