Diffusion Coefficient Estimates, Tipping Points, and 2014 Adoption Rates
| Scenarios | External Diffusion Coefficient (p) | Internal Diffusion Coefficient (q) | Tipping Point | 2014 Adoption Percentage |
| Optimistic | .0047 | .2001 | 2009 | 71.61% |
| Best Estimate | .0054 | .1673 | 2011 | 61.93% |
| Conservative | .0053 | .1544 | 2012 | 56.20% |









