Use of xml:space, xml:lang and xml:base in schema documents

In my schema document collect ( a bit > 1000 schema documents) I find
the following usage counts

xml:space     0
xml:lang      > 6000 (value en/EN/us-en)
xml:lang      > 600 (other values)
xml:lang      0 (empty value)
xml:lang//xml:lang  1 [probably an accident]
xml:base      0

ht
-- 
 Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                     Half-time member of W3C Team
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Received on Wednesday, 1 September 2004 14:46:55 UTC