2012

6.5

1985

8.3

1997

7.9

1994

8.7

2008

8.5

1990

7.4

2023

8.1

2021

7.8

2007

7.3

2022

7.4

1972

8.7

2001

7.4

2019

8.1

2018

7.4

2010

8.4

2013

6.5

2006

7.5

2013

8.1

2009

7.6

2004

8.1