36% of U.S. workers join in the gig economy through either their primary or secondary jobs.[7] The number of people working in major economies is generally less than 10 percent of the economically viable population, according In Europe, 9.7 percent of adults from 14 EU countries participated in the gig economy in 2017, according to the survey. Meanwhile, it is estimated that gig worker's size, which covers independent or non-conventional workers, is 20% to 30% of the economically active population in the United States and Europe.[2]