2005

7.1

1971

7.5

2024

6.8

2017

5.3

2011

6.6

2001

7.7

2004

7.3

2013

5.2

1991

6.8

1984

7.0

2019

6.7

2010

7.6

2006

7.5

2016

6.3

2007

7.4

2021

6.5

1997

5.6

2017

7.1

1996

5.9

1984

6.3