condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.03140715 0.0 0.0628143 8 h after light 0.0315155 0.0 0.063031 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0