2014

6.8

2015

7.4

7.8

2013

5.3

2006

6.4

2024

8.0

1980

7.0

2019

7.6

2023

6.5

2014

8.3

1972

3.5

1956

5.0

2017

6.0

2012

5.9

1972

6.0

1974

7.0

1994

5.8

1961

7.7