1977

8.2

2007

7.7

1986

7.1

1976

5.0

2012

4.8

2019

5.8

2004

3.1

2007

7.0

2005

4.5

2003

5.7

1993

5.4

2006

4.9

2004

6.8

2021

0.0

2022

10.0

2023

0.0

1996

4.2

1989

6.2

1984

6.0

2008

7.1