1998

7.2

2016

6.4

2004

7.7

2004

8.3

2006

9.3

1996

5.3

2000

6.6

2010

7.6

1960

7.6

2021

8.2

2022

6.5

2021

7.7

1993

8.1

2017

6.4

2022

6.4

1989

8.4

1992

6.0

1979

7.6

2021

6.0

2004

8.6