How much insulin you use depends on many factors - including "honeymooning",
how much you weigh (smaller people need less than larger people), insulin sensitivity, and , of course, how much carb you eat.
The average T1 who produces no native insulin uses about 0.7 units/kg/day total daily dose of basal and bolus insulin. This is *average* and there is a large variation. So a 175 lb ( 80 kg) person would average about 56 units a day total dose, while a 100 lb (45 kg) person might use 31-32 units. Some people are more insulin sensitive and some are more insulin resistant, and would use more or less than these numbers.
I am about 1.5 years since diagnosis and I know from C-Peptide tests that I am still prducing some insulin, though it has been dropping rapidly. I started out at diagnosis using about 20 units a day (10 basal, 10 bolus) and am now up to about 65 units a day. It slowly increased over time as the native insulin production fell off.
You see it happening as your fasting and post-meal BG numbers start going up and you increasingly have to make adjustments to compensate.
Other factors can bring the total daily dose down : losing weight, exercising, insulin sensitizing agents (metformin and others).
Like everything with diabetes, it's highly individual.