1964

7.4

2011

7.3

2021

9.2

1972

4.0

1964

6.8

1976

4.9

1967

5.0

2013

8.1

1998

8.0

2014

6.8

2009

7.5

2012

4.7

2011

7.3

2015

5.9

2010

7.1

2022

5.5

2012

6.0

2013

5.8