2011

6.3

2025

10.0

2005

6.8

1986

7.6

1990

5.5

1990

6.1

2004

5.7

2016

6.8

2017

4.5

2006

7.0

1987

5.3

1976

7.5

2014

6.5

2003

3.5

2023

6.9

1983

7.4

2005

10.0

1981

6.2

1928

6.0

2001

6.0