For persons not single in column 12:
[Columns 13 to 15]

13. Age at first marriage _ _

[Columns 13 to 15 are for persons reported as not single in column 12]

Column 13 - Age at first marriage
For every person, male or female, who is not single in column 12, write the age, in completed years, at which he or she got married for the first time. Marriage includes civil and religious marriage as well as free union.
For example, if a person started living in a free union at the age of 25 years, got civilly married at the age of 28 years, and then married religiously at the age of 29 years, write 25 years.
Similarly, if a person first married at the age of 20 years, obtained a divorce at 30 years, and then married again two years later, write 20 years.