condition mean min max 4 h after light 4.118245 3.48305 4.75344 8 h after light 5.665155 5.56237 5.76794 12 h after light 6.2918 5.80466 6.77894 4 h after dark 5.20828 4.66875 6.27645 8 h after dark 4.383066666666666 3.72376 5.22049 12 h after dark 3.2408966666666665 2.58309 3.64457