27343
After an initial incidence of about 6 / 100 , 000 inhabitants / year in 2003 and 2004 , the incidence remained stable at 3 / 100 , 000 / year in 2005 - 2010 .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None