The chart displays the US Digital Video Ad Cost Per Thousand Impressions (CPTI, USD) from 2021 to 2025, illustrating a steady and continuous decrease in cost over this five-year period. The CPTI started at its highest point in 2021 with 20 USD. It then consistently dropped each year to 19 USD in 2022, 18 USD in 2023, and 17 USD in 2024. The cost is projected to reach its lowest point at 15 USD in 2025. The total projected decrease in the CPTI is 5 USD ($\mathbf{20 \text{ USD} - 15 \text{ USD} = 5 \text{ USD}}$) from 2021 to 2025. This suggests that digital video advertising is becoming more cost-efficient for advertisers as the market matures and platforms introduce greater efficiencies.
| Labels | Cost Per Thousand Impressions (CPTI, USD) 2015–2025 |
| 2021 | 20 |
| 2022 | 19 |
| 2023 | 18 |
| 2024 | 17 |
| 2025 | 15 |
