89 = 89 or older
97 = question not asked
98 = don't know
99 = no answer

Happiness
8 = don't know
9 = no answer

Income in previous year (expressed in 1986 dollars)
999998 = don't know
999999 = no answer

0 = male
1 = female

Siblings (include step-, adopted, & deceased siblings)
97 = question not asked
98 = don't know
99 = no answer

Size of Current Place of Residence in 1000s
-1 = not assigned