2010

6.6

2019

8.1

2007

7.8

1994

8.7

2015

7.6

2025

6.9

2000

8.2

2016

7.6

1959

8.0

1985

8.3

2010

7.7

1994

8.5

1972

8.7

2016

8.5

2014

8.5

2011

6.9

2002

8.4

1981

7.3

1997

7.9

2009

7.0