This is the 502nd most frequent Arabic word.
معدلات
"Rates" or "averages."
Here, 'معدلات' refers to the rates or levels of unemployment, signifying a measure of occurrence.
تزداد معدلات البطالة في المنطقة.
The unemployment rates in the region are increasing.
In this sentence, 'معدلات' indicates the frequency or levels of crime occurrences being monitored.
نحن نراقب معدلات الجريمة بشكل دوري.
We monitor crime rates periodically.
'معدلات' is used here to denote the percentage or proportion concerning the success in exams.