1977

10.0

2001

7.8

1999

7.0

2023

0.0

2004

6.6

2006

7.0

0.0

1998

5.7

2015

5.6

2000

5.5

1967

6.5

1980

6.9

2007

6.7

2006

6.5

2001

5.1

1993

5.0

2024

0.0

2016

5.4

1992

6.4

2018

6.4