1825
Since reform and opening up to the outside world , China has been promoting attracting foreign investment even more as an important part of the basic national policy of opening up , the past five years have been five years when foreign merchants ' investments grew fastest , and foreign investments have stepped into the majority of fields of China 's national economy .
 China, the past five years, five years, China
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 China, the past five years, five years, China