2007

7.4

1977

5.1

1979

5.0

2011

6.1

2019

8.1

2020

7.2

2019

8.2

1972

8.7

1978

7.6

2016

7.0

2015

7.6

1999

8.2

2019

8.5

2017

6.7

2013

7.8

2018

7.6

2014

7.4

2006

7.8

2003

7.8

2022

7.6