I compare the list with the following
[B] ICU's implementation and the internal table gSubTypes
[C] The table in "6 Unit Elements" of CLDR spec http://unicode.org/reports/tr35/tr35-general.html#Unit_Elements
[D] CLDR validation xml file https://unicode.org/repos/cldr/tags/latest/common/validity/unit.xml
and I found some inconsistency. and I have some questions:
Q1. Both [B] and [C] includes
but it is not mentioned in [D]. Is this a CLDR bug between [C] and [D]?
include them into the xml file (Change [D]) OR
2) remove them from the UTS35 (Change [C]?
Peter Edberg stated
"Regarding Q1, the right answer is 1, these should be included in the xml validity file. I think I should have done that when adding these units."