With some math's I calculated that you should have obtained 185 of each artifact (5000/100x3.70) so with this we can calculate which artifact's are under odds or over odds.
Over odds: Ancient seeds (very helpful), ancient sword, chewing stick, chicken statue, chipped amphora, dried starfish, dwarvish helm, ornamental fan, prehistoric handaxe and tool, rare disk, rusty spoon and spur, pearl, and treasure chest
On odds: Elvish jewelry
Under odds: Anchor, ancient drum and doll, arrowhead, bone flute, dwarf gadget, glass share, golden mask and relic, rusty cog, and golden pumpkin