condition mean min max 4 h after light 3.28461 2.9196 3.64962 8 h after light 3.386535 2.93897 3.8341 12 h after light 2.362085 1.8984 2.82577 4 h after dark 2.74729 2.63724 2.94088 8 h after dark 3.5517833333333333 2.9814 4.04209 12 h after dark 3.7815133333333333 3.34138 4.44273