not all graph should start at 0. In this case that might be a good idea but if your data is all above 5000 and moves a couple points, you probably don't want to

not all graph should start at 0. In this case that might be a good idea but if your data is all above 5000 and moves a couple points, you probably don't want to show 0 because it will be hard to see what is happening. A one point change might be very significant.