It can depend on how much detail you need in your report. It is possible to choose the granularity of your data by selecting hourly, daily or monthly. Choosing “hourly” will time your data collection frequency by 24. The hourly granularity gives a more in-depth look at usage, such as EC2, enabling you to view spikes and trends in your data. However, this will increase the data volume in your CUR, and the data storage cost.