condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.300605 0.29566 0.30555 8 h after light 1.0512415 0.915763 1.18672 4 h after dark 0.442743 0.392687 0.492799 8 h after dark 0.09886135 0.0984465 0.0992762 12 h after dark 0.0488248 0.0 0.0976496