6636
But even among those aged 75 and older , the share living with a spouse rose slightly , to 40 % in 1988 from 38 % in 1970 .
 date: aged 75 and older; percent: 40 %; date: 1988; percent: 38 %; date: 1970
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: 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:
 date: aged 75 and older; percent: 40 %; date: 1988; percent: 38 %; date: 1970