On yearlings, you get about 35 lbs. of meat, boned out. On 1 1/2 year old does, expect about 60 lbs. on average. We are talking whitetails, not sika. On bucks, you can get upwards of 100 lbs. of meat boned out, and on the really big boys, more than that.
These are just rules of thumb, and your experience will vary depending on where you hunt, how much rain and nutritional feed the deer have during the year, the condition of the oak and acorn mast crop, the presense or lack thereof of corn and soybeans, and sorghum, and other factors. Here in the Corn Belt, our yearlings ( 6 months and less) weigh in at 85 lbs. dressed weight. That is as much as some 1 1/2 year old does. We also have bucks that go over 300 lbs, dressed, and a lot more that top 250 lbs. dressed. Figure at least 150 lbs. of meat boned out. If you leave the bones in( shame on you!) you will obviously need more space in the freezers. Bones, fat, and sinew in deer have enzymes in them that sour the meat, and make it tough, even when frozen.