1997

6.5

2008

5.2

1985

6.8

1994

8.9

2020

6.4

6.6

1969

4.7

2008

5.1

5.7

2015

6.6

2016

9.7

1970

4.6

2024

6.0

2005

10.0

2008

6.7

2010

6.2

1995

6.1

1994

7.9

1963

5.9

2000

7.4