“change in marital status” decreased significantly from 13.4% to 10.1%. The percentages of male respondents moved for “work-related reasons” and “family-related reasons” remained nearly at the same level. In case of females, the percentages of those moved “to attend school” and “to accompany a family member(s)” increased from 1.7% to 3.6% and from 14.8% to 17.2%, respectively. The percentages of females who moved due to “family-related reasons” and “change in marital status,” however, decreased from 8.0% to 6.9% and from 18.1% to 15.0%, respectively. No significant changes were seen in the percentages of the females who moved for “work-related reasons” and “housing-related reasons.”

### 3. Reasons for Migration by Sex and Age

Table IV-3 presents distributions of reasons for migration by sex and age. Since children from 0 to 14 years of age most often migrate together with their parents, the following analysis focuses primarily on respondents aged 15 and over.

## (1) Males

Among males aged 15 to 19, approximately 40% moved “to attend school,” 26.7% moved for “housing-related reasons”, and 14.1% moved “to accompany a family member(s).” Migration “to attend school” and “accompany a family member(s)” peaks at this age. By the time in their early 20s, the percentage of males moving “to attend school” decreases to a little under 25%, while “work-related reasons” (26.8%) and “housing-related reasons” (25.0%) increase and reach at almost the same level. In the latter half of the 20s, there are no significant changes in percentages of males moving for “housing-related reasons” (26.6%) and for “work-related reasons” (24.3%), though the percentage of males moving due to “change in marital status” increases (26.3%). “Housing-related reasons” is consistently the most common reason cited for males in their 30s and up, generally accounting for 40 to 50% of the male respondents in each age group. The second most common reason among males in the latter half of their 30s to the first half of their 60s is “work-related reasons.” The percentage of respondents moving for “family-related reasons” ranges from 5 to 8% among those in the latter half of their 20s to the latter half of their 50s. Analysis of more detailed response categories indicates that the majority of those moving for “family-related reasons” is actually moving “to live with parents.” The percentage of males moving for “family-related reasons” increases somewhat in their 70s, but in this case, the majority of the respondents move in order to “live with children.” In is worth noting that in case of males, the percentage of those moving for “housing-related reasons” remains high throughout their life course. In fact, housing-related move accounts for more than 50% even in the latter half of their 60s to the first half of their 80s. This accounts for more than 80% even in their first half of their 80s. Note that the percentage of males in their 30s who moved for “other reasons” exceeds 10%. This is primarily due to high share of respondents citing “better environment for child-rearing.” Note also that in general, the male respondents seldom choose “to accompany a family member(s)” as a reason for migration.

## (2) Females

In all age groups except for those in the latter half of their 20s, those in the first half of their 30s and those of age 80 and up, the most commonly cited reason for moving is “housing-related.” Percentages of females who moved for housing-related reasons range from 30% to nearly 55%. Among the 15-19 age group, the most prevalent reason is “housing-related” which accounts for approximately 33% of the respondents, followed by “to attend school” (27.6%) and “to accompany family members” (19.1%). The percentage of females moved “to attend school” is the highest in this age group out of all age groups but it is still lower than the corresponding percentage among males in the same age group (41.3%). Among female respondents in the early 20s, the percentage of those moving for “work-related reasons” (26.0%) is at the same level with the percentage of those moving for “housing-related reasons.” The percentage of females moving for “work-related reasons” is the highest in this age group. The period from the latter half of the 20s to the first half of the 30s marks the peak of female migration due to “change in marital status” which accounts for approximately 30% of the reasons during this period. Among females in the latter half of their 30s to the first half of their 40s, “to accompany family members” accounts for the second-highest percentage (10 to 20%) after “housing-related reasons.” The percentage of females moving “to accompany family members” peaks in the latter half of their 30s. For females in the latter half of their 50s to their early 70s, the second most common reason for migration after “housing-related reasons” is “family-related reasons.” The majority of these are moving actually “to live with children.” The percentage of respondents choosing “family-related reasons” as the reason of migration exceeds 20% in the age group aged 70 and up. The percentage of respondents choosing “other reasons” exceeds 10% for