2001

7.8

2005

6.8

2008

6.6

1997

6.8

2001

5.9

1992

7.5

1996

6.4

1987

7.3

1989

0.0

2019

9.5

1984

8.1

2003

8.3

2023

6.7

1995

6.7

1987

6.9

1997

7.0

2000

6.4

2002

6.7

2017

6.6

1967

7.6