PEDUC							     ISCED97	   LIS recode
  0  no schooling						0		1
 11  primary school, leaving without diplom					1
 12  primary school, graduated        				1       	1
 21  middle school, leaving without diplom					1
 22  middle school, graduated        				2       	1
 31  high school, leaving without diplom					1
 32  high school, graduated        				3       	2
 41  junior college, leaving without diplom					2
 42  junior college, graduated        				5       	3
 51  university, leaving without diplom 					2
 52  university, graduated        				5       	3
 61  graduate school, leaving without diplom					3
 62  graduate school, graduated        				6       	3
 90  still attending school, or temporary leave					9
  .  unknown									9