Pick a level, an indicator and up to twelve places. Every series in a comparison comes from the same table (or World Bank indicator) with the same definition, unit and frequency. Countries, provinces and metropolitan areas live on separate levels and are never plotted together, because their definitions and smoothing differ.
Why there is no "city versus province" chartMetropolitan labour-force rates are three-month averages while provincial rates are monthly, and provincial series cover whole provinces. Plotting them together would suggest a like-for-like comparison that does not exist. Context charts on city pages show them separately.