condition mean min max 4 h after light 1011.2616666666667 717.22 1175.8 8 h after light 1143.556111 1030.853333 1340.065 12 h after light 1398.7066665666666 827.0066667 1881.99 1.5 h after dark 644.7377779 129.74 1326.426667 5.5 h after dark 324.8588889 116.2533333 563.8866667 9.5 h after dark 1133.2944444333334 568.9033333 1507.656667