1971

5.1

1983

5.2

2013

4.0

2001

5.7

1972

3.0

2023

5.5

2017

6.7

2019

4.5

1999

6.0

2007

6.6

2023

6.4

2005

4.9

2002

5.1

2002

5.3

2005

3.6

2008

5.7

2007

4.0

1984

2.5

2002

6.3

1993

3.7