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Calculation questions: See our <a href="/methodology" class="text-primary-600 dark:text-primary-400 hover:underline">Methodology page for detailed explanations.
Data sources: Check <a href="https://github.com" target="_blank" rel="noopener" class="text-primary-600 dark:text-primary-400 hover:underline">DATA_SOURCES.md on GitHub for carrier references.
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