condition mean min max 0 h after light 7.992979999999999 7.89554 8.09042 4 h after light 5.54964 4.89316 6.20612 8 h after light 6.190049999999999 5.3275 7.0526 4 h after dark 7.17085 6.91252 7.42918 8 h after dark 7.562250000000001 7.30394 7.82056 12 h after dark 7.4949449999999995 6.69945 8.29044