Strata definition Initial sample size Number of respondents Response rate
Paid, Low 535 157 29%
Paid, Low-Medium 2,081 665 32%
Paid, Medium 1,657 637 38%
Paid, Medium-High 1,820 713 39%
Paid, High 2,107 807 38%
Self, Low 368 146 40%
Self, Low-Medium 418 167 40%
Self, Medium 83 45 54%
Self, Medium-High 73 32 44%
Self, High 22 13 59%
Soft, Low 575 196 34%
Soft, Low-Medium 777 298 38%
Soft, Medium 591 271 46%
Soft, Medium-High 537 252 47%
Soft, High 142 75 53%
Total 11,786 4,474 38%