FTP    UEMP     MAN         LIC      GR        CLEAR     WM       NMAN     GOV     HE    WE    HOM

260.35  11.0    455.5   178.15  215.98  93.4    558724. 538.1   133.9   2.98    117.18  8.60   
269.80  7.0     480.2   156.41  180.48  88.5    538584. 547.6   137.6   3.09     134.02  8.90    
272.04  5.2     506.1   198.02  209.57  94.4    519171. 562.8   143.6   3.23     141.68  8.52    
272.96  4.3     535.8   222.10  231.67  92.0    500457. 591.0   150.3   3.33      147.98  8.89    
272.51  3.5     576.0   301.92  297.65  91.0    482418. 626.1   164.3   3.46      159.85  13.07   
261.34  3.2     601.7   391.22  367.62  87.4    465029. 659.8   179.5   3.60      157.19  14.57   
268.89  4.1     577.3   665.56  616.54  88.3    448267. 686.2   187.5   3.73      155.29  21.36   
295.99  3.9     596.9   1131.21 1029.75 86.1    432109. 699.6   195.4   2.91   131.75  28.03   
319.87  3.6     613.5   837.60  786.23  79.0    416533. 729.9   210.3   4.25      178.74  31.49   
341.43  7.1     569.3   794.90  713.77  73.9    401518. 757.8   223.8   4.47      178.30  37.39   


The data are on the homicide rate in Detroit for the years 1961-1970
FTP    - Full-time police per 100,000 population
UEMP   - % unemployed in the population
MAN    - number of manufacturing workers in thousands
LIC    - Number of handgun licences per 100,000 population
GR     - Number of handgun registrations per 100,000 population
CLEAR  - % homicides cleared by arrests
WM     - Number of white males in the population
NMAN   - Number of non-manufacturing workers in thousands
GOV    - Number of government workers in thousands
HE     - Average hourly earnings
WE     - Average weekly earnings

HOM    - Number of homicides per 100,000 of population