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 | 20775 | 9.05 |
| 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 |
|---|---|---|
| 2025-10-18 20:04 | 3725 | 1 mwezi 10 siku |
| 2025-10-18 20:03 | 0210 | 15 miaka 9 miezi 7 siku |
| 2025-10-18 19:58 | 1519 | 6 miaka 6 miezi 10 siku |
| 2025-10-18 18:33 | 0210 | 15 miaka 9 miezi 7 siku |
| 2025-10-18 18:22 | 1617 | 8 miaka 6 miezi 1 siku |
| 2025-10-18 18:08 | 3019 | 6 miaka 2 miezi 26 siku |
| 2025-10-18 17:59 | 3916 | 9 miaka 22 siku |
| 2025-10-18 17:47 | 3110 | 15 miaka 2 miezi 16 siku |
| 2025-10-18 17:26 | 1008 | 17 miaka 7 miezi 15 siku |
| 2025-10-18 17:10 | 5024 | 10 miezi 9 siku |
| 2025-10-18 16:32 | 185 | 30 miaka 5 miezi 17 siku |
| 2025-10-18 16:31 | 245 | 30 miaka 4 miezi 6 siku |
| 2025-10-18 16:01 | 2421 | 4 miaka 4 miezi 4 siku |
| 2025-10-18 15:52 | 4913 | 11 miaka 10 miezi 16 siku |
| 2025-10-18 14:58 | 245 | 30 miaka 4 miezi 6 siku |
| 2025-10-18 14:50 | 5016 | 8 miaka 10 miezi 6 siku |
| 2025-10-18 14:50 | 0817 | 8 miaka 7 miezi 28 siku |
| 2025-10-18 14:36 | 185 | 30 miaka 5 miezi 17 siku |
| 2025-10-18 05:40 | 4719 | 5 miaka 11 miezi |
| 2025-10-18 05:26 | 5019 | 5 miaka 10 miezi 9 siku |