1968

6.4

2013

5.1

2021

10.0

2007

10.0

2009

7.5

1997

3.8

1966

6.7

2023

8.4

1999

6.6

1975

4.9

2017

5.0

2009

7.5

6.8

2002

3.5

5.9

2006

6.5

2013

6.1

1991

5.3