1998

7.2

1992

6.8

2022

6.9

1995

7.3

2013

6.8

1988

7.1

2008

6.7

1960

7.6

2000

8.1

2013

8.2

5.8

1970

7.5

1993

6.6

2004

8.6

2009

7.7

2006

6.9

1999

7.6

1996

6.8

2007

7.3

2004

8.0