condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0246781 0.0 0.0493562 12 h after light 0.11740420000000001 0.0471564 0.187652 4 h after dark 0.01967235 0.0 0.0393447 8 h after dark 0.0103275 0.0 0.020655 12 h after dark 0.02528495 0.0 0.0505699