2013

6.1

1999

6.6

1978

6.8

2020

5.8

2003

6.2

2013

6.1

1967

4.3

2014

5.4

2021

5.7

6.2

2021

7.4

2009

6.1

2020

6.9

1966

6.7

2012

7.8

2023

7.0

1990

5.8

1984

6.5

2005

5.2

2016

5.3