The data in this report is drawn from the 1994 public library annual report and represents a snapshot of certain conditions that existed in Wisconsin public libraries at the end of 1993. Trustees and staff can use this data to identify an appropriate peer group and select a service target based on activities reported by that group. This companion to the standards summarizes the source of the data analyzed, provides methods for estimating a library's service population, instructs readers on applying appropriate measures, and provides the data itself, in table form. Service data is tabulated according to 8 input measures: full time equivalent staff per 1,000 population; volumes held per capita; periodical titles, audio recordings, and video recordings held per 1,000 population; print acquisitions as a percentage of holdings; total materials expenditures per capita (print and non-print); and hours open per week (winter). The libraries are grouped into eight population ranges. Within each range, the data was analyzed to define three recommended service targets, representing three levels of effort--basic, moderate, and advanced. Instructions on estimating service population and per capita measures, and the application of the per capita standards are also provided. (Contains 16 tables.) (BEW)