condition mean min max 4 h after light 156.8008 153.9691 162.3906 8 h after light 130.4842 106.6794 161.9646 12 h after light 150.8499 113.5075 187.7819 16 h after light 197.83736666666667 162.5048 240.1524 4 h after dark 307.74496666666664 287.7278 326.2507 8 h after dark 190.88323333333332 145.1964 213.9271