2004

8.3

1998

7.2

1993

6.6

2009

7.1

1989

7.9

2016

7.3

2018

6.5

2009

7.2

1996

6.9

2014

6.1

1984

7.8

2000

8.0

2023

8.3

1982

7.5

1994

7.6

1990

7.4

2015

7.8

1999

8.3

2004

7.4

2022

7.0