Completing the Picture with Uber Administrative Data Uber collects extensive data on driver-partners’ trips, fares, and time via the Uber app. Below, we summarize findings based on Uber’s administrative data using aggregated, anonymized tabulations from Uber’s databases to round out the analysis of the labor market for Uber’s driver-partners. Figure 1 documents the exponential growth in the number of active Uber driver-partners in the United States from mid-2012, when uberX was launched, to the end of 2015. The spectacular growth of the number of active driver-partners over the last few years is evidence that Uber provides many workers a choice that they prefer to other available options or to not working at all. During the latest month for which we have data, December 2015, a total of 464,681 driver-partners completed four or more trips using the Uber platform. Figure 1: Number of Active Driver-Partners in United States Each Month Note: Figure based on U.S. UberBLACK and uberX driver-partners providing at least four rides in any month (1,085,765 individuals). Source: Uber administrative data. An active driver-partner is defined as a driver-partner who completed at least four trips in the month. 13