1. A method for extracting data from a multi-touch sensing apparatus, wherein said method operates in a sequence of detection frames, each detection frame comprising: obtaining at least one signal representative of objects on a touch surface of the sensing apparatus; processing said at least one signal for identifying a number of touches and determining age data for each touch, the age data representing a number of preceding detection frames in which the touch is deemed to be identified, determining a set of identified touches and touch data for the set of identified touches; and outputting the touch data; wherein the set of identified touches is limited to a predefined maximum number of identified touches and wherein said set of identified touches is selected among the number of touches based on the age data.