2006

6.1

2005

8.8

2000

6.2

2020

7.5

1997

7.5

1988

5.7

2021

7.9

1985

6.3

2001

8.1

1996

7.0

1999

7.7

1995

7.7

1969

7.4

2006

8.1

2018

7.0

2005

5.0

1997

5.7

1987

7.1

2002

7.5

1991

0.0