Percent of the non-farm labor force

Percent of the manuf. & transport labor supply

Lebergott

Estimated Romer

Douglas (with extrapolations)

A. Decade averages

1900-09

8.9

9.4

5.3

1909-19

8.5

9.0

6.8

1919-29

6.6

8.1

8.1* (8.0, 8.0)

B. Cycle averages

1900-02

9.4

10.2

4.8

1903-07

7.4

8.6

4.3

1908-10

11.3

10.2

6.9

1911-13

9.1

9.6

5.0

1914-18

8.9

9.4

7.2

1919-20

5.1

6.5

4.2

1921-23

10.2

10.2

13.7

1924-26

5.2

7.8

6.0

1927-29

5.5

7.3

5.6* (7.0, 6.9)

C. yearly data

1919

2.3

5.0

4.0

1920

7.9

7.9

4.3

1921

16.3

12.2

21.2

1922

10.2

10.5

15.4

1923

3.9

7.8

4.4

1924

7.7

9.0

8.3

1925

5.1

7.8

5.1

1926

2.8

6.4

4.5

1927

5.1

7.1

5.6

1928

6.5

7.7

(8.3, 7.9)

1929

5.0

7.1

(7.1, 7.1)

(14)

(15)

(16)