Hi, we did this in class as a practice paper I put the number on the y axis and went up in 20s. Then for the x axis I put the years, I used 10 small boxes for each set of years like 1969-73 then split that into half so used 5 for men then 5 for women. I plotted the graph then shaded all the ones for men in one way and the ones for women in another way then I had a key elsewhere on the page as our teacher told us not to write too much on the x axis.