I think its a fairly even split. Mostly because the success of society throughout history has been dependent on the combined sacrifices of both men and women.
Women and children are saved first (sinking ships and such). Men are drafted in war time. This is how it has been, this is how it will be. Gender roles.
It is very hard to know what "historically " means since different things happened in different places over the whole course of human history, most of which none of us are familiar with