1998

6.2

2014

5.9

2009

8.5

2024

5.5

2012

9.7

2010

5.3

2003

10.0

1987

6.0

2014

5.9

2013

6.0

1962

4.6

1909

4.5

1987

4.0

2010

4.8

2021

6.0

2013

3.5