condition mean min max 3 h after light 132.636 123.46 149.718 6 h after light 129.38013333333333 97.5524 162.174 9 h after light 136.16806666666668 97.0792 172.168 12 h after light 150.49375 136.953 168.388 3 h after dark 231.732 216.637 240.219 6 h after dark 167.01066666666665 154.665 175.221 9 h after dark 134.91533333333334 122.505 145.808 12 h after dark 130.741 108.825 152.657