# Fastly::HistoricalUsageMonthResponseData ## Properties | Name | Type | Description | Notes | | ---- | ---- | ----------- | ----- | | **customer_id** | **String** | | [optional][readonly] | | **services** | [**Hash<String, HistoricalUsageService>**](HistoricalUsageService.md) | Organized by *service id*. | [optional] | | **total** | [**Hash<String, HistoricalUsageData>**](HistoricalUsageData.md) | Organized by *region*. | [optional] | [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)