New source packages
These are source packages which were newly introduced into Debian.
New binary packages
These are source packages which needed to pass through NEW again for additional binary packages.
How to read the graphs
The above graphs visualize the processing times of the NEW queue by upload month. They answer the question: how long did it take for a package which was uploaded in a particular month to be either accepted or rejected?
The graphs have different percentiles for the processing time. The k-percentile is the time that was beaten by k% of the packages which were uploaded to NEW in that month. The 50-percentile is better known as median; half of the packages where processed by that time and half took longer. The red-shaded intervals show the freezes for Debian releases.
If less than k% of the uploads in a month have been processed yet, the k-percentile remains undefined and is not plotted; this is why the graph lines may end a few months early.