Data Declaration for Table 19



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Data Declaration for Table 19


Table 19

Rate: Number of Crimes per 100,000 Inhabitants, Additional Information About Selected Offenses, by Population Group, 2005

The FBI collects these data through the Uniform Crime Reporting (UCR) Program.



General comments

  • This table provides for each population group (both city and county groupings) the rate of offenses per 100,000 inhabitants and and the number of offenses known for forcible rape, robbery, aggravated assault, burglary, and motor vehicle theft as well as the breakdowns associated with each type of offense. In addition, the table furnishes the estimated population for each population group.

  • The totals provided in this table reflect only those offenses for which law enforcement agencies provided additional information to the UCR Program; therefore, the totals will not match those shown in other rate tables.

  • The UCR Program does not have sufficient data for publishing arson offenses in this table; therefore, arson figures are not included.

  • The FBI publishes only data that conform to UCR data collection guidelines. The data collection methodology for the offense of forcible rape used by the state UCR Program administered by the Illinois State Police does not comply with these guidelines, so the FBI does not use these data in computing the rates for this table. Instead, the FBI computes the rates by estimating for forcible rape for Illinois by applying the national rates for each population group to the population by group for Illinois agencies supplying 12 months of complete data.

  • Suburban area includes law enforcement agencies in cities with less than 50,000 inhabitants and county law enforcement agencies that are within a Metropolitan Statistical Area. Suburban area excludes all metropolitan agencies associated with a principal city. The agencies associated with suburban areas also appear in other groups within this table.

Methodology

  • The data used in creating this table were from all law enforcement agencies submitting 12 months of complete data (except arson) for 2005.

  • The FBI derived the offense rates by first dividing the total aggregated offense estimates by the aggregated populations covered by contributing agencies and then multiplying the resulting figure by 100,000.

Population groups

The UCR Program uses the following population group designations:




Population Group

Political Label

Population Range

I

City

250,000 and more

II

City

100,000 to 249,999

III

City

50,000 to 99,999

IV

City

25,000 to 49,999

V

City

10,000 to 24,999

VI

City1

Less than 10,000

VIII (Nonmetropolitan County)

County2

N/A

IX (Metropolitan County)

County2

N/A

1Includes universities and colleges to which no population is attributed.

2Includes state police to which no population is attributed.

Population estimation

The FBI calculated 2005 state growth rates using revised 2004 state/national population estimates and 2005 provisional state/national population estimates provided by the U.S. Census Bureau. The FBI then estimated population figures for city and county jurisdictions by applying the 2005 state growth rate to the updated 2004 U.S. Census Bureau data.



If you have questions about this table

Contact the Communications Unit of the FBI’s Criminal Justice Information Services Division via e-mail at cjis_comm@leo.gov or by telephone at (304) 625‑4995.





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