1991

7.0

2023

6.6

2022

7.3

1994

8.7

2016

8.2

2005

8.1

2017

7.6

2016

7.6

2016

8.2

2012

7.7

2013

8.0

1980

8.2

2015

6.8

2019

7.1

1992

8.1

1971

8.2

2021

8.1

2010

8.4

1996

7.9

2023

7.5