Derrick R.
So, inverting the values of X and "My understanding of charts" in order to adhere to Cartesian convention, it does appear (and depending on what exactly X represents) that you understand charts on so many different levels.  In fact, at certain points on the X Axis, there are, in fact, 7 values for "My understanding of charts".  It appears that you are a chart master, sir.
Now, let's see a chart on your understanding of graphs.