1953

7.2

2007

6.2

1999

6.8

1994

6.6

1972

6.6

1955

6.2

1971

6.0

1980

5.9

1993

6.5

1951

7.9

1966

6.2

2006

6.1

2024

9.9

1949

6.2

6.6

2017

6.6

2015

5.7

2008

4.7

2013

6.4

2006

7.0