condition mean min max 4 h after light 351.7260205 136.512486 566.939555 8 h after light 129.0684345 43.970112 214.166757 12 h after light 81.935058 59.719557 104.150559 4 h after dark 237.9976 93.018822 382.976378 8 h after dark 306.105889 269.516329 342.695449 12 h after dark 403.040902 403.040902 403.040902