condition mean min max 0 h after light 67.4574 66.0721 68.8427 2 h after light 93.4399 92.1046 94.7752 4 h after light 87.15995000000001 84.9963 89.3236 8 h after light 78.20915 74.6374 81.7809 12 h after light 70.8699 69.7506 71.9892 2 h after dark 59.42425 54.2079 64.6406 4 h after dark 54.79475 54.5843 55.0052 8 h after dark 64.31575000000001 63.0081 65.6234 12 h after dark 66.7641 66.2677 67.2605