30
[0
30
20
WN
“0 Tone
}
»
3
Severity Rats»
1.000 Tas
1920 1921 1022 1923 1924 1925
12.0 35.3 30.6 32.6 27.1 18.5
Number of Accidents per 1,000,000 Tons
1.563 5.60 5.36 4.65 4.76 "3.70
Days Lost per 1.000 Tons
CHART 41 AccmENT FREQUENCY AND SEVERITY RATES IN TERMS OF PRODUCTION
FroM 1920 10 1026 oF 120 COMPANIES MANUFACTURING PORTLAND CEMENT. NuUM-
BER OF EMPLOYEES ABOUT 35,000
Frequency rate decrease .........
Severitv-rate decrease ....
..eese. 40 per cent
47 &@
0
Frequency Rate per
10.000 Tons
Is
Ss Ton
1921
14,9
s mm
922 1923 ]
1.2 10.2 8.90
Accidents per 10,000 Tons
4.88 6.25 2.08
Davs Lost per 100 Tons
2
1925
5.75
2 40
CHART 42 AcciENT FREQUENCY AND SEVERITY RATES IN TERMS OF PRODUCTION
From 1921 10 1926 oF 3 CoMpPANIES MANUFACTURING Acips AND HEAVY CHEMI
TALS. NuMBER oF EMPLOYEES, 4,276
Accident frequency rate decrease ....................57.5 per cent
Accident severity rate decrease. ...60.2 68