2007

8.5

2017

7.9

1999

7.4

2006

8.6

2014

7.8

2022

8.4

2000

8.2

2011

8.5

1990

6.9

1992

8.2

1987

7.7

2019

8.5

1977

7.2

2016

8.5

1962

7.3

1972

7.7

2011

8.3

2016

7.6

2016

8.3

2015

7.3