02-03-2012, 09:40 PM
What is magical about 7? It magnifies the difference beyond the realistic change.
I don't think so.
The graph shows a trend over a certain period of time, you won't get a different looking trend if you add a bunch of empty space at the bottom.
Look at this graph from the BLS. It starts at 4% for unemployment. Look at the 2 year period we are seeing above. You see the same shape curve. Three more numbers were added to the vertical axis but you see the same shape.
http://data.bls.gov/timeseries/LNS14000000
