2013

7.7

1991

7.0

2018

6.1

2012

5.6

1961

6.6

2014

5.7

2001

6.6

2019

7.7

1939

7.1

2017

5.9

1965

6.9

2017

6.9

2019

8.4

2001

6.2

2024

5.5

2020

5.5

2005

8.3

2023

9.4

2009

7.3

2021

7.8