How much is the difference in the exam results of medical practitioners?

It is impossible to calculate, because the number of people who take the exam every year is not fixed. According to relevant data, the full score of the examination for medical practitioners is 360, including two examinations, one of which is the skill examination. I took the theory test once in the first half of the year and once in the second half. Now, in order to be fair, the examination is conducted in a qualified medical college in the province, and the examination is conducted by lottery. The result is real and does not contain any moisture.