2019

3.5

2005

5.6

1998

6.9

2002

6.1

1997

6.8

2007

6.1

2015

6.3

2013

4.5

1994

6.4

2013

5.4

2014

6.6

1972

7.4

1977

6.0

2023

6.4

2006

6.2

2000

6.6

2021

0.0

2018

4.8

2001

4.8

2013

5.3