Literal question
13a. During the last 10 years, did [respondent] live in the United States at any time for a period of 6 or more consecutive months?
[] 1 Yes
[] 2 No -- Skip to 14
[Questions 17 through 34 are for individuals aged 15 and over]
18c. In total, how many years of active-duty military service have you had?
____ Years