Project-GC does not have any data about lab caches since Groundspeak doesn't present the data in their API.
I'll quote what the FAQ says:
Lab caches is a new cache type. This far, it is not supported by Groundspeak's API and they are not included in the My Finds GPX. It's also very unclear if they are supposed to be included in statistics or not. When looking at Geocaching.com, they are included in some charts, but not in some others. They do however count as finds on Geocaching.com. Until Groundspeak has given support in the API Project-GC will not support these. If/when they get included in the API, we will look into them again and see what we will do with them.
Update 3rd June 2014
Data about Lab caches are still not included in the API and will therefore not be supported, even though Groundspeak now includes them in some of the statistics.