2016

6.8

1993

6.1

1970

6.4

2001

6.1

1964

8.1

2003

4.9

1989

5.1

2005

5.1

2010

7.7

1962

7.5

2005

4.2

2001

5.6

1927

7.2

1994

6.9

1987

5.3

1985

6.2

2009

4.8

1979

7.3

2011

6.5

2004

7.3