I use StatCounter to log my website activity. The logs appear in the following format, cells upon cells of time stamps for hits:

9/24/2013 9:31
9/24/2013 9:28
9/24/2013 9:28
9/24/2013 9:28

This goes on for thousands of hits. How can I create a graph which shows how much activity occurred over a certain day, month, or year? I want to see spikes and/or changes in amount of activity over time.

Thanks!