condition mean min max 3 h after light 1.307449 0.678827 1.98204 6 h after light 1.71963 0.0 3.49109 9 h after light 2.4375923333333334 0.982647 3.22058 12 h after light 2.561025 1.23421 3.69965 3 h after dark 2.254909666666667 0.641839 3.57161 6 h after dark 1.5540310000000002 0.730098 3.05038 9 h after dark 1.8039253333333334 0.659606 3.2528 12 h after dark 0.4493735 0.393446 0.505301