<prompt> Translate the following text to EnglishMatatizo yanayohusiana na pombe hutokea kwa viwango vya chini, lakini kwa idadi kubwa zaidi, miongoni mwa wagonjwa wenye matatizo ya pombe ya upole hadi wastani kwa sababu wagonjwa kama hao huunda sehemu kubwa ya idadi ya kunywa.  <response>: Alcohol-related problems occur at lower rates, but in much greater numbers, among patients with mild to moderate alcohol problems because such patients constitute the greatest proportion of the drinking population. 