condition mean min max 4 h after light 9.958212 9.695654 10.22077 8 h after light 9.443356000000001 9.368883 9.517829 12 h after light 8.7452805 7.662659 9.827902 4 h after dark 8.695379500000001 8.021876 9.368883 8 h after dark 10.342727499999999 10.079631 10.605824 12 h after dark 9.98694 9.98694 9.98694