condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.024529533333333336 0.0 0.0735886 4 h after dark 0.0 0.0 0.0 8 h after dark 0.030109266666666665 0.0 0.0903278 12 h after dark 0.0 0.0 0.0