问卷上的题目是怎么问的呢？？

这个93年的Work Manual里第8页有讲到：
Regular schools refers to full-time schools accredited by national educational services
that have permanent teaching staffs and school addresses, excluding "five colleges/schools."
[Translator's note: This refers to five types of colleges/schools for adults--spare-time college, night
school, college for elderly people, etc.]
Years of schooling is calculated on a half-year basis. For example, if one person finished a half year
in second grade in middle school, he/she is considered to have finished second grade in middle school,
if less than a half year, then he/she is considered only to have finished first grade in middle school.
Entering vocational school after finishing middle school belongs in the high school category. [High
school is not an option on the table.]
Entering vocational school after high school belongs in the vocational school category. If the
vocational school is more than 2 years, then enter it in the highest category.
Three-year college is entered with regular college/university. [Translator's note: Three-year college
refers to a college for special studies.] For instance, second year in three-year-college is categorized as second year in regular college.

谢谢，但是教育的取值是00至35的，请问要怎么批量改变取值呢？

你是想变成受教育年数吗？replace吧~

请问如何replace呢，这个a11和受教育年限有什么关联，如何计算成受教育年限呢，多谢。