1990

6.1

2016

6.7

2023

6.1

1965

5.2

1984

5.7

2000

4.0

1957

5.0

1990

4.3

2007

6.9

2023

7.0

1979

5.8

1988

6.8

2001

7.1

1984

5.6

2019

7.7

2019

8.3

2001

7.0

1991

5.5

2005

6.5

2006

6.5