Our data shows women only work 76% of the time that men do. Interestingly, the National Committee on Pay Equity found that women earn 77% of what their male counter parts do. </quote>
a) They are primarily employed in occupations that pay less
b) They take maternity leave and/or extended vacations/time off (taking care of children etc.)
or
c) Women are just paid less for the same work?
Whether that is actually true, or - even better - relates in any way to productivity is out of scope here.
C happens but rarely in the US is it that a woman makes 77% of a man for exactly the same occupation, the difference might be 5-10% but not 23%.