condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.09373383333333334 0.0 0.215461 12 h after light 0.0572415 0.0 0.167088 3 h after dark 0.0 0.0 0.0 6 h after dark 0.022675 0.0 0.068025 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0