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 | 10426 | 9.03 |
| 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 |
|---|---|---|
| 2025-04-24 15:04 | 3021 | 3 miaka 8 miezi 29 siku |
| 2025-04-24 14:26 | 230 | 34 miaka 10 miezi 20 siku |
| 2025-04-24 14:09 | 0203 | 22 miaka 3 miezi 18 siku |
| 2025-04-24 14:02 | 3906 | 18 miaka 6 miezi 30 siku |
| 2025-04-24 14:02 | 3421 | 3 miaka 8 miezi 1 siku |
| 2025-04-24 14:02 | 2618 | 6 miaka 9 miezi 30 siku |
| 2025-04-24 14:01 | 1018 | 7 miaka 1 mwezi 19 siku |
| 2025-04-24 14:01 | 0918 | 7 miaka 1 mwezi 29 siku |
| 2025-04-24 13:56 | 1018 | 7 miaka 1 mwezi 19 siku |
| 2025-04-24 13:56 | 0918 | 7 miaka 1 mwezi 29 siku |
| 2025-04-24 13:56 | 2618 | 6 miaka 9 miezi 30 siku |
| 2025-04-24 13:54 | 3421 | 3 miaka 8 miezi 1 siku |
| 2025-04-24 13:51 | 4223 | 1 mwaka 6 miezi 8 siku |
| 2025-04-24 13:50 | 1919 | 5 miaka 11 miezi 18 siku |
| 2025-04-24 13:44 | 3305 | 19 miaka 8 miezi 9 siku |
| 2025-04-24 13:44 | 1223 | 2 miaka 1 mwezi 4 siku |
| 2025-04-24 13:39 | 2018 | 6 miaka 11 miezi 10 siku |
| 2025-04-24 13:39 | 4919 | 5 miaka 4 miezi 22 siku |
| 2025-04-24 13:37 | 4117 | 7 miaka 6 miezi 15 siku |
| 2025-04-24 13:23 | 3219 | 5 miaka 8 miezi 19 siku |