98991114_rime_in_the_United_States_2006__Reason_for_Estimation
[State(s)] Kentucky, Montana, New Hampshire, Wisconsin [Estimation Method] State totals were estimated by using 1997 figures for the nonreporting areas and applying 1997 versus 1998 percentage changes for the division in which each state is located. The estimates for the nonreporting areas were then increased by any actual 1998 crime counts received. [Reason for Estimation] 
The state UCR Programs were unable to provide complete offense figures in accordance with UCR guidelines.
Table 01, Data Declaration - Crime in the United States 2006
Reason for Estimation