A server collects measurement data of a camera to efficiently generate statistical data relating to the number of entering and exiting persons, and present the data to a user. The camera includes image capture unit capturing an image of a doorway of a facility, processor detecting persons entering and exiting from the doorway based on captured images sequentially output from the image capture unit and generating measurement data relating to the number of entering and exiting persons for each predetermined period, and communication unit transmitting the measurement data output from the processor for each predetermined period to store server, and store server includes communication unit receiving measurement data for each predetermined period transmitted from camera, storage unit accumulating measurement data for each predetermined period received by the communication unit, and processor statistically processing measurement data for each predetermined period to generate statistical data for targeting one or more facilities.