2004

6.1

2002

7.3

2015

7.6

1990

7.4

2000

6.2

2021

7.2

1994

6.4

1993

4.8

1967

7.3

1979

7.3

2006

4.1

1937

7.1

2017

7.0

2002

8.0

1970

7.6

1968

6.7

1974

8.6

2013

7.2

1983

6.7

1993

8.6