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 | 11797 | 9.13 |
| 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 |
|---|---|---|
| 2025-05-09 07:00 | 2114 | 10 miaka 11 miezi 20 siku |
| 2025-05-09 05:05 | 199 | 25 miaka 11 miezi 29 siku |
| 2025-05-09 05:05 | 125 | 30 miaka 1 mwezi 19 siku |
| 2025-05-09 04:03 | 1723 | 2 miaka 15 siku |
| 2025-05-09 03:53 | 2710 | 14 miaka 10 miezi 4 siku |
| 2025-05-09 02:02 | 383 | 31 miaka 7 miezi 19 siku |
| 2025-05-09 01:32 | 4921 | 3 miaka 5 miezi 3 siku |
| 2025-05-09 01:18 | 0322 | 3 miaka 3 miezi 22 siku |
| 2025-05-09 01:15 | 1623 | 2 miaka 22 siku |
| 2025-05-09 01:14 | 1722 | 3 miaka 14 siku |
| 2025-05-09 00:29 | 0118 | 7 miaka 4 miezi 8 siku |
| 2025-05-09 00:27 | 1823 | 2 miaka 8 siku |
| 2025-05-08 23:36 | 4820 | 4 miaka 5 miezi 15 siku |
| 2025-05-08 23:34 | 2123 | 1 mwaka 11 miezi 16 siku |
| 2025-05-08 23:33 | 3415 | 9 miaka 8 miezi 21 siku |
| 2025-05-08 23:29 | 3423 | 1 mwaka 8 miezi 17 siku |
| 2025-05-08 23:29 | 4820 | 4 miaka 5 miezi 15 siku |
| 2025-05-08 23:05 | 2323 | 1 mwaka 11 miezi 3 siku |
| 2025-05-08 22:47 | 3318 | 6 miaka 8 miezi 25 siku |
| 2025-05-08 22:26 | 5123 | 1 mwaka 4 miezi 20 siku |