historical VXX quotes

is there a source that has extrapolated historical quotes for VXX before 2009 when it first started trading? it seems fairly straightforward to derive this from historical VIX futures
 
Quote from psytrade:

See attached. This is from Yahoo Finance, the ^VIX. Probably most before 2000 or so is inferred.

It's not derived. Just plain ^VIX. Might be useful.

sorry but VIX and VXX do not correlate well. historical quotes on VIX futures would be more useful than VIX
 
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