1988

8.0

2001

7.8

2008

7.6

2000

7.6

2003

5.5

1982

7.6

2016

7.8

1965

6.0

2015

5.3

1998

7.1

2023

6.6

2021

6.9

2009

7.0

2001

6.3

2003

7.8

2011

7.4

2018

7.6

2025

6.3

2016

7.0

1986

8.4