According to the Bloomberg Model 3 estimator, Tesla is now producing 1,052 Model 3 units per year. Bloomberg also estimates they have produced nearly 7,500 units in total.
Although these figures put Tesla slightly behind schedule of their goal for 2,500 units a week by the end of Q1 and 5,000 units by the end of Q2, Tesla still has a shot to hit these targets.
At this rate, Tesla should be able to deliver in the neighborhood of 200,000 Model 3's in 2018.