1996

8.1

2023

8.6

2006

6.1

1968

5.8

1989

9.5

1985

5.3

2003

8.6

1993

6.5

1973

5.7

2000

6.2

1993

8.0

2004

8.3

2007

6.7

2003

7.6

2006

7.5

1987

7.7

2013

9.7

2020

7.0

1979

0.0

2014

4.3