With 63 seats (and assuming only two gender identifications), it's impossible for one gender to not be in the majority. Gender equality in this measurement is

With 63 seats (and assuming only two gender identifications), it's impossible for one gender to not be in the majority. Gender equality in this measurement is therefore likely meant to be interpreted as time-averaged, not instantaneous. Even with an even number of seats, unless 50-50 were mandated, we would expect fluctuations around the mean.