IPC conducts about 25 statistical programs – monthly, quarterly, annually and biennially – for IPC members. Program participants receive the results of the surveys to which they contribute data.
The monthly and quarterly programs require a consistent sample of participating companies throughout each calendar year. Companies that sign up to participate in these programs agree to contribute their data every month/quarter of the calendar year in which they sign up. Monthly programs are open to new participants from January 1 through February 15. New participants may join quartely programs through April 30 of each year. |