307
ral
10
ld
“greene Kate ~~
J, 000,000 Por~
“5
r
-Severity Rate per
10.000 Tons
1922
22.2 26.4
Accidents per 10,000,000 Pounds
2.82 1.52
Days Lost per 10,000 Pounds
CHART 43 AcomeNT FREQUENCY AND SEVERITY RATES IN TERMS OF PRODUCTION
From 1920 To 1925 oF 14 COMPANIES MANUFACTURING EXPLOSIVES. NUMBER OF
EMPLOYEES, 2,035
1920
62.5
-4
1924
14.8
Accident frequency rate decrease ....................77.I per cent
Accident severity rate decrease . veer 73.0 #
sol
i
“atahty Rate per
10.000 Tons ~
§ pi
— ela ————taiteereeand
1910 18 1919 1920 1921 1922 1923 1924
63.6 58.5 55.8 72.0 54.9 60.5 54.9 54.5 56.5
Fatalities per 10,000.000 Tons
CHART 44 Accent FaTaLity Rates. iN TERMS oF Propuction From 1916 TO 102%
OF 337 ANTHRACITE CoAL MINING CoMmPANIES. NUMBER OF EMPLOYEES, 160,000
Fatality rate decrease ......
...I1.4 per cent
<5