2003

6.2

2023

8.4

2002

5.4

2000

7.1

2018

5.3

1989

6.7

6.1

1996

9.5

2013

6.4

2021

7.8

2021

5.7

7.8

1937

6.3

1967

6.8

2014

4.2

6.1

1992

5.6

2007

8.0

2015

7.4

2017

5.4