2008

6.5

2016

8.2

2015

6.8

2019

7.1

1996

7.9

1970

7.3

2001

8.5

1994

8.7

1982

7.9

2012

7.7

2009

7.4

1998

7.3

2005

6.7

2005

8.1

1985

8.3

1990

7.5

2003

6.7

2022

7.6

2019

8.5

2023

7.6