1997

4.7

2011

7.2

2005

6.3

1972

4.0

1988

6.0

2022

7.8

1982

5.8

2004

7.1

2011

7.0

2014

7.0

1953

6.6

2016

7.4

2012

6.6

2011

7.2

2015

6.2

2014

7.2

2023

10.0

2012

6.9