98991114_rime_in_the_United_States_2006__Reason_for_Estimation
[Year] 1994 [State(s)] Illinois [Estimation Method] Illinois totals were generated using only the valid crime rates for the East North Central Division. Within each population group, the state's offense totals were estimated based on the rate per 100,000 inhabitants within the remainder of the division. [Reason for Estimation] 
NIBRS conversion efforts resulted in estimation for Illinois.
Table 01, Data Declaration - Crime in the United States 2006
Reason for Estimation