condition mean min max 0 h after light 0.216935 0.0 0.43387 2 h after light 0.4037445 0.0 0.807489 4 h after light 0.2047535 0.0 0.409507 8 h after light 0.416221 0.0 0.832442 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.2151055 0.0 0.430211