2002

6.4

2002

6.2

2013

5.5

2001

3.0

1997

6.7

2001

6.1

1961

6.0

1973

7.8

1963

7.9

1999

5.1

2001

4.7

1979

7.5

1977

6.8

2002

7.6

1986

4.7

2003

5.4

10.0

2017

7.2

2015

5.9

1919

4.7