2000

6.7

1997

6.1

1970

7.3

2011

5.1

1975

5.6

2022

6.3

2011

9.1

2009

8.5

2020

6.0

2023

6.9

1966

6.1

2001

9.9

2000

6.0

1999

6.8

2009

5.8

1985

6.7

2011

6.5

2013

5.7

2003

6.1

1999

6.7