Notice also that they plotted exactly 6 bars. Choosing the start point is also a way to magnify perceived growth-- perhaps the growth was much stronger before

Notice also that they plotted exactly 6 bars. Choosing the start point is also a way to magnify perceived growth-- perhaps the growth was much stronger before that and is actually levelling off? Of course, if they had drawn 8 bars I could have said the same, so I'm not accusing them of anything; I'm simply pointing out the possibility.