1969

9.2

2018

6.8

2013

7.0

2004

7.3

2021

6.2

2023

6.3

2022

6.5

2003

7.4

1987

7.8

2005

7.1

1987

5.8

2005

8.3

2003

7.6

1996

8.7

1993

0.0

1970

6.2

1996

7.5

1991

7.7

1996

7.0

2018

8.4