condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0860663 0.0 0.236099 12 h after light 0.0 0.0 0.0 4 h after dark 0.06094926666666666 0.0 0.128407 8 h after dark 0.0158728 0.0 0.0476184 12 h after dark 0.042854666666666666 0.0 0.0721473