2007

6.8

1991

9.0

2001

7.4

1993

6.2

1981

6.7

1990

6.1

1997

6.6

1993

7.5

2017

7.2

1968

3.8

2023

6.5

1997

5.9

1960

7.4

2004

6.2

2002

7.2

1980

8.2

2000

8.2

1999

7.5

1990

7.5

2006

8.2