The phrase "same graph" means that two or more sets of data are represented visually in a similar way on a diagram or chart. This allows you to compare and analyze the information together. Full definition
In part 3 of the series WoW Prof Cox visited Iguazu and on the banks of that spectacular waterfall he discussed this very same graph with his Argentinian counterpart. (wattsupwiththat.com)
Now here is the same graphs for the 1950s and 1960s, and then the 1970s and 1980s (there was no period of weakness in the 1990s!) (businessinsider.com)
However, when you put the same graph into a percentage (%) progression, you realize that DUK is offering a steady, but small dividend growth rate. (thedividendguyblog.com)