Kitakwimu umri wa wastani wa matairi katika Marekani. Umri wa takwimu wa matairi katika miaka fulani huhesabiwa kwa msingi wa data iliyoingizwa na watumiaji wa tovuti ya CheckTire.com.
| Mwaka | idadi ya matumizi | Umri wa wastani wa matairi |
|---|---|---|
| 2025 | 15094 | 9.19 |
| 2024 | 36476 | 8.92 |
| 2023 | 20757 | 8.82 |
| 2022 | 17709 | 8.44 |
| 2021 | 31541 | 8.25 |
| 2020 | 26024 | 8.69 |
| 2019 | 6401 | 8.40 |
| 2018 | 1319 | 9.24 |
| 2017 | 62 | 9.86 |
| Tarehe/Saa UTC | DOT | Umri wa tairi |
|---|---|---|
| 2025-06-14 00:37 | 1821 | 4 miaka 1 mwezi 11 siku |
| 2025-06-14 00:29 | 3424 | 9 miezi 26 siku |
| 2025-06-13 23:56 | 1902 | 23 miaka 1 mwezi 7 siku |
| 2025-06-13 23:55 | 190 | 35 miaka 1 mwezi 6 siku |
| 2025-06-13 23:00 | 0711 | 14 miaka 3 miezi 30 siku |
| 2025-06-13 22:30 | 0219 | 6 miaka 5 miezi 6 siku |
| 2025-06-13 22:12 | 3318 | 6 miaka 10 miezi |
| 2025-06-13 21:38 | 4620 | 4 miaka 7 miezi 4 siku |
| 2025-06-13 21:37 | 1911 | 14 miaka 1 mwezi 4 siku |
| 2025-06-13 21:25 | 3417 | 7 miaka 9 miezi 23 siku |
| 2025-06-13 21:23 | 4321 | 3 miaka 7 miezi 19 siku |
| 2025-06-13 20:55 | 4723 | 1 mwaka 6 miezi 24 siku |
| 2025-06-13 20:47 | 4824 | 6 miezi 19 siku |
| 2025-06-13 20:40 | 188 | 27 miaka 1 mwezi 17 siku |
| 2025-06-13 20:38 | 1624 | 1 mwaka 1 mwezi 29 siku |
| 2025-06-13 20:31 | 0625 | 4 miezi 10 siku |
| 2025-06-13 20:28 | 1118 | 7 miaka 3 miezi 1 siku |
| 2025-06-13 20:22 | 1422 | 3 miaka 2 miezi 9 siku |
| 2025-06-13 20:09 | 4522 | 2 miaka 7 miezi 6 siku |
| 2025-06-13 20:08 | 0325 | 5 miezi |