2004

7.6

1997

6.4

2014

7.8

2012

7.4

2009

6.7

2011

7.3

2024

6.7

1965

6.0

2011

7.5

1978

7.5

2004

7.9

1975

7.3

1963

5.7

2015

6.8

2024

7.6

2015

7.7

2017

6.2

2014

6.9

1982

7.1

2019

6.4