1999

7.6

2014

6.3

1995

8.0

2005

7.0

2002

6.1

2004

7.2

1975

7.5

2003

5.8

2006

8.2

1994

7.0

1959

7.9

2001

7.8

2019

6.5

2023

4.3

1986

7.0

1995

6.3

2005

7.0

2025

0.0

1999

7.4

1994

5.6