condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.05591033333333333 0.0 0.167731 12 h after light 0.055120333333333334 0.0 0.165361 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0