TUHI is a free, high-dimensional data visualisation service based on hundreds of millions of pieces of big data. The overall evaluation results are grouped by city size into large city groups and small and medium-ze city groups based on the principle of impartiality. Detailed scores are published for all evaluated cities in terms of their overall health status and five specific indicators over the years. An overview of the corresponding overall rankings can be found on this page by clicking on the different option keys.