As the data in Table 5 indicate, our two-variable regression analysis explains approximately 95 percent of the variation in retail e-commerce over the nine-year period. Regression coefficients on both of the explanatory variables are, as expected, positive, and tstatistics indicate that they are significantly different from zero at a confidence level of greater than 99 percent. In short, our model is statistically robust and explains nearly all of the variation in retail e-commerce over the sample period.