Unions participated in more representation elections and won a larger percentage of those elections during the first six months of 2014 compared to the same time period in 2013. Yet, the overall number of employees that become union members declined. What does this mean? It means that the average size of bargaining units has decreased – perhaps a result of the surge in micro units. Other statistics include: Teamsters participated in the most elections (145); Machinists had the highest win rate (90%); Unions organizing companies in the manufacturing industry had the lowest win rate (44%); and Unions won 72% of elections of 1-49 workers, 60% of elections of 50-99 workers, 79% of elections of 100-499 workers, and 54% of units over 500 workers.