And the accompanying pretty pictures. I added a gray line on the second figure to show the zero change point for reference – above that the numbers are going up, below they are decreasing.
NOTE: I finally had to expand the left hand y-axis! Remember in the first figure there is a x10 distortion between short sale data and total listings.
[img_assist|nid=3218|title= Total listing and short sales in San Diego County|desc=|link=node|align=left|width=466|height=297]
[img_assist|nid=3219|title= Percent change and percent short sales|desc=|link=node|align=left|width=466|height=297]