condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.03406766666666667 0.0 0.102203 8 h after dark 0.036045 0.0 0.108135 12 h after dark 0.033598333333333334 0.0 0.100795