6.6

2006

6.1

2024

7.7

6.6

2019

5.4

2011

6.8

2003

6.6

2024

6.0

1988

6.3

2017

9.5

2023

6.2

2012

5.8

1963

5.9

1991

5.7

1988

6.5

2017

6.6

1972

6.6

2016

6.1

1992

5.0

2017

6.2