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 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.012800033333333334 0.0 0.0384001 12 h after dark 0.0150503 0.0 0.0451509