1975

5.6

1980

7.5

2019

6.4

1980

5.1

2006

6.3

1990

6.8

1976

2.0

2009

6.6

1969

3.0

1986

5.5

1984

1.0

1997

5.9

2007

5.6

1989

4.5

2005

6.3

1992

6.0

2023

0.0

2014

5.2

2023

5.6

1983

5.4