That's NOT what it said in the article:
<quote>
Results
The results are broken down by the markup density of the test documents. The density makes much more difference than the size of documents. This is not really a surprise for streaming parsers. Even DOM-based LXMLP keeps the pace with the others as long as there is enough memory available. Figures 1, 2, and 3 graph the performance of the parser modules for medium, low, and high markup density. The values shown in the figures are proportional times of processing; the fastest parser shows 100% for each document.
</quote>
I do not question the base for your notes -- just point out the inconsistancy in the aritcle (probably a stupid typo)