condition mean min max 3 h after light 1.94584 1.17961 3.22846 6 h after light 2.97242 1.52626 4.95678 9 h after light 1.9138433333333333 1.4418 2.25779 12 h after light 3.4875225 1.10301 5.04111 3 h after dark 2.6793033333333334 1.75637 4.20826 6 h after dark 5.520176666666667 4.20377 7.26853 9 h after dark 5.351473333333334 3.81936 8.18626 12 h after dark 2.088985 1.55298 2.62499