1990

7.8

1994

6.9

1990

6.0

2013

8.7

1998

6.8

2000

6.3

2004

4.0

1984

0.0

2023

6.0

1983

6.0

2018

6.7

1969

5.6

1994

7.4

1968

4.2

1996

3.7

1983

6.0

1979

5.0

1992

6.3

1999

6.0

2013

5.8