Recording data into max?

Hi there, i'm trying to record some data in max, i have a running tempo extractor that can take a sequence of bangs and turn it into a bpm i want to record the the values coming from the bpm against time to get a set of data to make a graph of bpm against time. i can get a list of values as a text file but i need a log of time as well

heres the patch

thanks for any help!