Computer Smartphone Tablet
Wave 1 97.2% 1.8% 1.0% (n=1,010)
Wave 2 96.9% 1.8% 1.3% (n=795)
Wave 3 96.9% 1.8% 1.3% (n=762)
Wave 4 96.6% 1.9% 1.5% (n=746)
Wave 5 96.1% 2.4% 1.5% (n=712)
Wave 6 96.6% 1.8% 1.6% (n=685)
Wave 7 96.4% 2.3% 1.3% (n=689)
Wave 8 95.7% 2.5% 1.8% (n=671)
All waves 96.6% 2.0% 1.4% (n=6,070)