condition mean min max 0 h after light 4.696625 4.16705 5.2262 4 h after light 8.390654999999999 8.19592 8.58539 8 h after light 6.3019750000000005 5.42853 7.17542 4 h after dark 7.60997 7.33257 7.88737 8 h after dark 7.43792 7.143 7.73284 12 h after dark 6.475205 6.17781 6.7726