Recoding was not carried out.
All the datasets of Canada have a problematic mix of levels in the code 9
corresponding to post-secondary diploma.
According to the Canadian country expert it is more likely that most post-secondary
diplomas should indeed be classified as high education.
This results in an unlikely high percentage of high education.
As 27% of the persons are concerned, the mix of education levels 
has a notable effect on the results.  

If LIS users want to pursue a recode they may do so on their own responsability.
The mapping below may serve as suggestion. 
The problematic category is pointed out.
 
PEDUC							     ISCED97	   LIS recode
  1  Never attended school							1
  2  1-4 years of elementary school				1		1
  3  5-8 years of elementary school				2		1
  4  9-10 years of elementary and secondary school		2		1
  5  11-13 years element. & second. school, but not graduated	2		1
  6  Graduated high school					3A		2
  7  Some non-university postsecondary (no certificate)				2
  8  Some university (no certificate)						2
  9  Non-university postsecondary certificate			4C/5B		2 or 3 ?
 10  University certificate below Bachelor's			5A		3
 11  Bachelor's degree						5A		3
 12  University certificate above Bachelor's, Master's Degree	5/6		3
 -1  Not in Sample, Don't Know, Refusal, Not Applicable				9