1994

6.5

1999

5.9

2002

4.6

1964

7.4

2000

7.2

2005

6.6

2009

7.4

2013

8.1

2000

6.3

2013

4.4

1936

6.3

2004

7.3

2021

9.2

2004

5.1

1985

5.8

2019

6.4

1931

6.9

1989

9.6

1998

6.0

1981

7.3