1965

6.8

2009

8.7

2004

9.5

2012

9.4

2002

8.4

2016

8.5

2023

7.8

1997

5.8

2020

5.8

2015

5.1

2005

6.0

2012

8.0

2021

6.2

1991

2.5

1965

6.3

2019

9.8

2002

4.0

2008

3.5