Can all my recent sea time for a nearcoastal licence be in the great lakes?

I’m planning on finally applying for my masters100 near coastal 150 ton this fall. I have over 480 12 hour days on ocean and nearcoastal, but by this fall none of it will be recent, other than a handful of 8 hour days here or there. The reason that I am pushing it to the fall is that I am considering joining the crew of a schooner on the great lakes this summer, which would give me 90 days… I see that great lakes time can make up a good deal of my overall time, but does anyone know if it can be all ( or the very large bulk) of my recent time?