2021

7.9

2013

8.4

2020

8.6

2011

7.8

2019

8.7

2001

7.6

1980

7.3

1983

7.5

2023

8.3

2011

6.3

2017

7.9

1981

7.4

2016

7.6

1979

7.3

1998

8.6

2002

8.3

2016

8.5

2007

6.8

1975

7.7

1994

6.8