Capture vs. SPA growth

In this week's premium edition, which just came out, I have a feature comparing Harvey Spencer Associates growth rates for the capture market to Forrester's as published in a study recently commissioned by Kofax.
Anyhow, here are two charts I came up with that I felt were relevant to the story (the x-axis represents billions of dollars in software revenue):

                                                                                                                                                                    
Basically, it's Spencer's contention that SPA is primarily capture technology, so the bottom chart is a more accurate representation of HSA's numbers vs. Forrester's than just comparing the black and orange lines on the top chart.