1988

7.0

2007

4.7

1985

6.5

1993

6.5

1997

5.8

1973

7.3

2003

6.3

2006

6.2

2004

7.7

1998

6.6

1986

6.3

1961

4.6

1998

6.2

1990

5.1

2019

8.2

1999

0.0

1966

6.7

2021

7.6

1984

6.2

2022

9.0