condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0209515 0.0 0.0326289 9 h after light 0.07615836666666667 0.0 0.197517 12 h after light 0.008040575 0.0 0.0321623 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.01819775 0.0 0.0363955