PEDUC							     ISCED97	   LIS recode
  1  mandatory school						1		1 
  2  reduced form of vocational apprenticeship (Anlehre)	3C		2
  3  secondary stage of vocational apprenticeship (Berufslehre)	3C		2
  4  full time vocational training (Vollzeitberufsschule)	3B/4B		2
  5  medium level of secondary education (Diplommittelschule)	3B		2
  6  higher level of secondary education (Maturitaetsschule)	3A		2
  7  language course (Sprachaufenthalt)						1
  8  domestic science school (Haushaltslehrjahr)				1
  9  training abroad (Ausbildung im Ausland)					9
 10  medium level of professional training (Meisterdiplom)	5B		3
 11  technical education (Technikerschule)			5B		3
 12  high level of professional training (Fachsch. Technikum)	5		3
 13  university							5A		3
 14  other education								9
 15  trade/business school (Handelsschule)			4B/5B		2 or 3 ?
  .  missing, not head								9

REMARK about recoding :
The educational variable is only asked to the head of household !!
Both the ISCED manual, and publications from the Statistical Office were used.
 ( http://www.bfs.admin.ch/bfs/portal/en/index/dienstleistungen/publikationen_statistik/publikationskatalog.html )
Even though it is not clear if the category trade/business school (code 15) belongs 
 to medium or high, it only concerns 0.6 percent of all heads.