Do you have card specific stats (lead time, cycle time, work time, wait time, blocked time, efficiency)?

You can view card-specific stats through the Lead and Cycle Time diagram. It will provide you with a start time, an end time, and a cycle time statistic for each task. Lead & Cycle Task Statistics

Another good piece of card-specific information is the Time log, accessible from the task itself. It shows how much time different users have spent working on it. Individual Time Logs

Information on working time entries for specific tasks can also be read from the Summary View of the Time Report, after grouping entries by task and by user together.
Note: the Time Log and Time Report are only available on the Enterprise plan.

Kanban Tool is a visual management solution that helps companies visualize workflow, track project progress, and analyze and significantly improve business processes. Kanban Tool provides powerful online Kanban boards with seamless time tracking and insightful analytics. Our Kanban software works perfectly in any business process and is designed for teams that want to visualize work on a Kanban board.