Retrieve add-to-cart rate

Retrieves the add-to-cart rate for all your searches with at least one add-to-cart event, including a daily breakdown. By default, the analyzed period includes the last eight days including the current day. The rate is the number of add-to-cart conversion events divided by the number of tracked searches. A search is tracked if it returns a queryID (`clickAnalytics` is `true`). This differs from the response's `count`, which shows the overall number of searches, including those where `clickA...