2001

7.4

2004

6.6

1994

7.1

1992

3.0

1978

5.8

1971

6.4

1981

6.5

1983

6.3

1990

7.0

1954

7.6

2023

5.2

1982

6.9

2012

5.2

2007

5.1

1968

4.9

2019

4.5

2002

6.3

2002

4.5

2017

5.7

1989

3.0