2006

7.5

1993

6.1

1976

5.5

1987

7.4

2005

6.6

1989

5.3

2012

9.4

2003

6.3

2003

7.3

2014

8.0

2010

7.7

2019

6.6

1999

7.6

1943

6.4

2012

7.7

1972

6.6

1993

7.8

2015

5.9

2004

9.9

2016

7.6