If your intention is to see how your apartment stacks up in regards to health, the better route would be to focus on figuring out average occupancy and length of lease for your properties. A healthy occupancy would ideally be 90% but it really depends on where your property is. For example, if you live in a large city where rentals are hard to find and your occupancy rate is 90% or lower you might want to evaluate the pricing of your property, the condition of the properties, the crime rate in the area, etc. If you live in a small town if occupancy is lower than 90% it can be attributed to low population, low market of renters, etc. A good way to see how you compare is getting intel from other properties nearby that are similar to your own. You can either try getting intel on your own or you can reach out to companies that provide acquisition reviews so that you can see how your properties are performing compared to others. It helps to know how others are doing because it tells you what you are doing right and where you can make improvements.
Acquisition reviews are nice because it provides a wealth of information that you would not have thought of. It could be: pricing, your policy is too strict, your demographic is drastically different than the norm in your area and thus your marketing strategy needs to change.
There are many factors that play into occupancy and average amount of leases signed and if you are really wanting to know how your property is performing it is best to get to know your competitors.