2003

7.1

2003

6.7

2016

4.6

2002

7.5

1978

4.3

2016

7.2

2003

7.2

1974

6.4

1984

5.1

1982

2.7

2000

7.4

1983

5.7

1998

6.5

1994

6.6

1956

6.7

1991

6.2

1990

6.7

1993

5.5

2007

6.1

2007

6.0