Table 1.
Median WTA estimates for most popular digital goods categories
| Category | WTA per year 2016, $ | WTA per year 2017, $ | 95% CI WTA per year 2016, $ | 95% CI WTA per year 2017, $ | n | ||
| Lower | Upper | Lower | Upper | ||||
| All search engines | 14,760 | 17,530 | 11,211 | 19,332 | 13,947 | 22,080 | 8,074 |
| All email | 6,139 | 8,414 | 4,844 | 7,898 | 6,886 | 10,218 | 9,102 |
| All maps | 2,693 | 3,648 | 1,897 | 3,930 | 2,687 | 5,051 | 7,515 |
| All video | 991 | 1,173 | 813 | 1,203 | 940 | 1,490 | 11,092 |
| All e-commerce | 634 | 842 | 540 | 751 | 700 | 1,020 | 11,051 |
| All social media | 205 | 322 | 156 | 272 | 240 | 432 | 6,023 |
| All messaging | 135 | 155 | 98 | 186 | 114 | 210 | 6,076 |
| All music | 140 | 168 | 112 | 173 | 129 | 217 | 6,007 |