2003

5.7

2000

5.5

2011

5.9

2019

7.5

2023

6.9

1999

6.0

1999

7.0

2015

6.5

1971

7.2

2023

5.3

2009

6.5

1995

6.3

2022

7.6

2009

5.7

2011

5.7

2009

5.6

2010

6.8

1971

6.4

2007

5.8

2016

5.7