condition mean min max 0 h after light 0.5547295 0.475967 0.633492 4 h after light 0.5933865 0.484111 0.702662 8 h after light 1.3130350000000002 1.17514 1.45093 4 h after dark 1.20776 1.17118 1.24434 8 h after dark 0.8998275 0.707815 1.09184 12 h after dark 0.625751 0.618861 0.632641