condition mean min max 3 h after light 1.69559 1.38468 2.19988 6 h after light 2.0050833333333333 1.68769 2.23535 9 h after light 3.7958833333333333 3.66136 4.05764 12 h after light 5.11881 2.27941 6.5749 3 h after dark 4.76143 4.26733 5.38725 6 h after dark 3.22951 2.92311 3.81619 9 h after dark 2.8094966666666665 2.57463 3.09567 12 h after dark 1.9085199999999998 1.80974 2.0073