condition mean min max 0 h after light 3.02049 2.29355 3.74743 2 h after light 5.355945 5.19381 5.51808 4 h after light 4.74155 4.48046 5.00264 8 h after light 4.979545 3.46939 6.4897 12 h after light 8.069605 7.31894 8.82027 2 h after dark 6.51656 6.00769 7.02543 4 h after dark 6.16628 5.57476 6.7578 8 h after dark 6.134625 4.83297 7.43628 12 h after dark 4.08769 2.84367 5.33171