1902

7.9

2005

4.6

2007

6.3

1999

6.3

1977

7.3

2002

7.3

1997

7.1

2002

6.7

1978

6.0

1973

7.3

1993

5.5

2018

4.7

1967

5.6

1968

8.1

1998

6.8

1942

5.8

1944

6.0

1981

3.3

1995

7.2

1962

6.9