1972

4.0

1999

9.1

1999

7.0

7.8

2010

9.1

2011

7.2

2005

6.5

2009

5.7

2018

6.0

2021

7.7

2020

7.2

1964

7.4

2012

5.7

2009

5.5

2019

6.7

1952

6.6

2023

10.0

2023

6.3