tdat_code	tdat_text
00	Number in thousands
01	Percent or rate
02	Number of weeks
03	Number of weeks
04	Number in hours
05	Number in hours
06	Average years
07	Median years
08	Average number of methods used for seeking jobs
09	Total methods used for seeking jobs
10	hours at work worked
11	hours at work offered
12	hours at work lost
13	Aggregate-hours at work
14	Aggregate-weeks
15	Workers multiplied by ave duration of unemployment
16	Number of families
17	Man hours at work imputed
18	Total man hours at work
19	Total man hours at work lost