I haven’t seen this posted on the official forums yet.
http://www.reddit.com/r/Guildwars2/comments/23bfg6/lod_fractal_research_weve_doubled_our_sample_size/
Level 41-50 : 159 opened, 9 asc armor, 1 asc weapon.
All credit to DanDaze & LOD.
IMO this simply isn’t good enough for the most challenging pve ‘dungeon’ in the game.