Propensity	Mail	RDD
	Percentage (95% Confidence Interval)	Percentage (95% Confidence Interval
Overall	7%* (5.7%–8.4%)	11% (10.0%–12.6%)
Landline only	12% (6.9%–17.4%)	14% (10.7%–16.7%)
Landline mostly	13% (3.5%–22.8%)	10% (4.9%–14.4%)
Landline/cell phone equal	8% (4.9%–10.5%)	10% (7.7%–12.0%)
Cell mostly	4%* (2.7%–6.0%)	10% (7.5%–12.4%)
Cell only	8% (4.4%–11.4%)	15% (9.1%–21.1%)
No phone	8% (0%–17.6%)	16% (9.5%–22.4%)