This visualization shows undergraduate graduation rates at UC Berkeley. These rates have generally increased over time, so that overall graduation rates are now consistently above 90%, which is a very high value for a large public university. In particular, as you can see below, the 4-year (entering freshmen) and 2-year (entering transfers) rates have increased considerably over the past decade.
Using the controls on the right side of the chart, you can choose to view data for either freshman or transfer entrants, for those entering either in the Fall only, or as an academic year total. The default data that you see here, for fall–entry new freshmen, is the IPEDS standard.