233900
Population Throughout history , the population has changed and since the start of the census in 1801 the population has steadily increased and reached its peak of 507 until 1831 where it decreased slightly to 495 before increasing again ( with the exception of 1921 where it was 530 ) in 1881 from 500 .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None