condition mean min max 4 h after light 5.348855 4.60834 6.08937 8 h after light 6.339965 6.3108 6.36913 12 h after light 6.9321850000000005 6.82842 7.03595 4 h after dark 6.074443333333333 5.57255 6.42578 8 h after dark 6.798256666666667 6.08993 7.26133 12 h after dark 5.889726666666667 5.28516 6.88823