condition mean min max 4 h after light 343.341 325.8683 358.0139 8 h after light 237.67016666666666 219.1259 274.5511 12 h after light 196.0356 133.696 282.7385 16 h after light 149.9393 120.0918 199.0534 4 h after dark 184.6125 152.5191 207.736 8 h after dark 171.55803333333333 129.9322 225.2219