1988

5.9

1987

7.1

1992

7.3

2002

6.6

1989

8.1

2021

10.0

1977

6.1

2010

2.4

2003

6.7

2005

3.8

1995

6.1

2007

7.0

1974

6.1

2000

7.1

2004

7.2

1995

6.8

2025

0.0

1994

2.7

2009

6.5

1989

6.3