This year marks the fifth year of our research on women in the workplace, conducted in partnership with LeanIn.Org. We look back on data and insights since 2015 from close to 600 companies that participated in the study, more than a quarter of a million people that were surveyed on their workplace experiences, and more than 100 in-depth one-on-one interviews that were conducted. (See our infographic below for top-level findings from the past five years.)