1975

7.3

1989

4.6

1995

6.4

1990

6.9

1996

8.1

1994

8.4

1984

5.9

1979

4.1

1992

6.7

2023

6.3

2000

8.0

1989

5.9

2023

6.2

1995

6.4

1997

4.0

2018

5.5