1999

7.3

1972

7.2

2019

7.4

2001

7.7

2024

8.1

2000

8.0

2007

9.6

2012

7.6

1978

7.7

2007

8.0

1997

7.1

2013

8.1

2019

8.0

1995

6.9

1968

7.3

2011

7.8

2017

6.3

2013

8.4

2014

7.0

1975

7.1