condition mean min max 4 h after light 1.5940109999999998 0.817662 2.37036 8 h after light 0.64791 0.0 1.29582 12 h after light 0.713025 0.671012 0.755038 4 h after dark 0.8950733333333334 0.0 2.68522 8 h after dark 2.8431633333333335 2.21254 3.78807 12 h after dark 1.8892433333333334 0.0 3.90225