Month	Number Per Workday
1938-01-01	250.000
1938-02-01	315.000
1938-03-01	483.000
1938-04-01	511.000
1938-05-01	485.000
1938-06-01	489.000
1938-07-01	517.000
1938-08-01	470.000
1938-09-01	488.000
1938-10-01	511.000
1938-11-01	437.000
1938-12-01	361.000
1939-01-01	362.000
1939-02-01	398.000
1939-03-01	441.000
1939-04-01	450.000
1939-05-01	414.000
1939-06-01	370.000
1939-07-01	303.000
1939-08-01	339.000
1939-09-01	355.000
1939-10-01	319.000
1939-11-01	272.000
1939-12-01	241.000
1940-01-01	240.000
1940-02-01	266.000
1940-03-01	299.000
1940-04-01	328.000
1940-05-01	336.000
1940-06-01	317.000
1940-07-01	311.000
1940-08-01	314.000
1940-09-01	334.000
1940-10-01	286.000
1940-11-01	258.000
1940-12-01	217.000