1986

7.7

1990

4.4

1987

8.6

1944

0.0

1979

5.8

1991

4.3

1992

4.4

2016

7.3

1956

4.3

2000

7.6

2005

7.2

2002

7.6

2002

7.1

1997

6.6

2005

6.9

2005

7.5

2004

8.0

2000

7.6

1998

8.3