condition mean min max 4 h after light 0.931843 0.731976 1.13171 8 h after light 1.63319 1.35337 1.91301 12 h after light 2.61972 2.47835 2.76109 4 h after dark 4.2428300000000005 3.81635 4.90577 8 h after dark 1.200332 0.660226 1.50925 12 h after dark 1.4919246666666666 0.526824 2.29393