How to do a simulate lux/hour exposition per year? (Daylighting for a museum)

I’m trying to do the same thing as Azagari, but using Honeybee 1.1/1.2. I want to calculate Total Annual Illumination and various other illuminance metrics such as average illuminance etc. Honeybee 1.1 and 1.2 don’t seem to have a component like the Legacy plugin which gives illuminance values for each analysis grid point as an output. How would one go about calculating TAI with Honeybee 1.1/1.2?

My thought was that I could use the resulting .ill file from annual daylight simulations, since the ‘HB Annual Daylight’ component gives the following description of the ‘results’ output: “Folder with raw results files (.ill) that contain illuminance matrices.”. However, I don’t fully understand the contents of this file. I’d expect it to contain [number of analysis points] * [number of hours in analysis period] number of values, but there seems to be far less. Have I understood the contents of the results .ill file wrong?

Any guidence would be much appreciated!