2001

5.1

1999

6.4

1980

5.1

2006

6.3

1999

6.5

1987

6.9

2023

7.2

1991

0.0

2002

6.8

2008

7.3

1976

2.0

2019

6.4

2007

3.1

0.0

1990

6.7

1975

5.5

2007

5.6

1989

4.5

1983

5.2

1997

5.9