2006

6.2

2011

7.2

1997

5.0

1972

5.0

2023

7.7

2017

6.6

2013

4.0

2014

7.6

1969

8.3

2019

10.0

2013

10.0

1978

4.9

2005

5.8

2010

7.1

1971

4.0

1986

6.4