condition mean min max 4 h after light 0.9849173333333333 0.142957 2.15985 8 h after light 0.927824 0.461962 1.30729 12 h after light 1.9143343333333334 0.666593 3.94542 4 h after dark 1.9717 1.12254 2.57414 8 h after dark 1.3741003333333333 0.272741 2.62025 12 h after dark 0.710567 0.323134 0.944532