condition mean min max 4 h after light 0.6503509999999999 0.530191 0.770511 8 h after light 0.45753849999999996 0.42515 0.489927 12 h after light 0.551212 0.486265 0.616159 4 h after dark 0.82024 0.0 1.24675 8 h after dark 0.8169303333333333 0.579229 0.957238 12 h after dark 0.8229943333333334 0.300326 1.2433