1. A system comprising: a telemetry interface; one or more processors configured to: obtain, via the telemetry interface, posture state data sensed by a medical device for a patient during delivery of therapy by the medical device; determine, based on the posture state data, durations for which the patient occupied each of a plurality of posture states; and generate, based on the determined durations, proportional posture information for a plurality of different time intervals, wherein the proportional posture information for each of the time intervals indicates proportional amounts of the respective time interval in which the patient occupied the posture states, and wherein each of the time intervals has a length corresponding to a therapy session of an entire time between programming sessions, the therapy session defining a period of time during which posture responsive therapy was delivered to the patient by the medical device; and a user interface configured to present the proportional posture information to a user.