Data quality metrics extracted from 4p4l.cif.gz by aB_cif2table1 from BUSTER (Global Phasing Ltd.). See also the PDBx/mmCIF dictionary.

Raw JSON data 
{
  "mxlims_type": "ReflectionSet",
  "version": "0.2.2",
  "uuid": "01124fd371bcd752597b474bb4cc4682",
  "space_group_name": "P 21 21 2",
  "unit_cell": {
    "a": 129.703,
    "b": 132.315,
    "c": 38.465,
    "alpha": 90.0,
    "beta": 90.0,
    "gamma": 90.0
  },
  "wavelengths": [0.97900],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [50.000,2.000],
    "number_observations": 402870,
    "number_observations_unique": 44610,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.066
      },
      {
        "type": "I/SigI",
        "value": 8.200
      },
      {
        "type": "Completeness",
        "value": 99.400
      },
      {
        "type": "Redundancy",
        "value": 9.000
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [2.030,2.000],
      "number_observations_unique": 2176,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.839
        },
        {
          "type": "Completeness",
          "value": 98.800
        },
        {
          "type": "Redundancy",
          "value": 8.900
        }
      ]
    },
    {
      "resolution_limits": [2.070,2.030],
      "number_observations_unique": 2186,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.733
        },
        {
          "type": "Completeness",
          "value": 99.600
        },
        {
          "type": "Redundancy",
          "value": 9.000
        }
      ]
    },
    {
      "resolution_limits": [2.110,2.070],
      "number_observations_unique": 2218,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.628
        },
        {
          "type": "Completeness",
          "value": 99.500
        },
        {
          "type": "Redundancy",
          "value": 8.900
        }
      ]
    },
    {
      "resolution_limits": [2.150,2.110],
      "number_observations_unique": 2177,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.508
        },
        {
          "type": "Completeness",
          "value": 99.500
        },
        {
          "type": "Redundancy",
          "value": 9.000
        }
      ]
    },
    {
      "resolution_limits": [2.200,2.150],
      "number_observations_unique": 2174,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.412
        },
        {
          "type": "Completeness",
          "value": 99.500
        },
        {
          "type": "Redundancy",
          "value": 9.000
        }
      ]
    },
    {
      "resolution_limits": [2.250,2.200],
      "number_observations_unique": 2267,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.360
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 8.900
        }
      ]
    },
    {
      "resolution_limits": [2.310,2.250],
      "number_observations_unique": 2160,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.308
        },
        {
          "type": "Completeness",
          "value": 99.400
        },
        {
          "type": "Redundancy",
          "value": 9.100
        }
      ]
    },
    {
      "resolution_limits": [2.370,2.310],
      "number_observations_unique": 2216,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.264
        },
        {
          "type": "Completeness",
          "value": 99.500
        },
        {
          "type": "Redundancy",
          "value": 9.200
        }
      ]
    },
    {
      "resolution_limits": [2.440,2.370],
      "number_observations_unique": 2191,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.221
        },
        {
          "type": "Completeness",
          "value": 99.900
        },
        {
          "type": "Redundancy",
          "value": 9.100
        }
      ]
    },
    {
      "resolution_limits": [2.520,2.440],
      "number_observations_unique": 2236,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.181
        },
        {
          "type": "Completeness",
          "value": 99.900
        },
        {
          "type": "Redundancy",
          "value": 9.200
        }
      ]
    },
    {
      "resolution_limits": [2.610,2.520],
      "number_observations_unique": 2212,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.156
        },
        {
          "type": "Completeness",
          "value": 99.700
        },
        {
          "type": "Redundancy",
          "value": 9.200
        }
      ]
    },
    {
      "resolution_limits": [2.710,2.610],
      "number_observations_unique": 2241,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.127
        },
        {
          "type": "Completeness",
          "value": 99.900
        },
        {
          "type": "Redundancy",
          "value": 9.200
        }
      ]
    },
    {
      "resolution_limits": [2.840,2.710],
      "number_observations_unique": 2213,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.115
        },
        {
          "type": "Completeness",
          "value": 99.900
        },
        {
          "type": "Redundancy",
          "value": 9.300
        }
      ]
    },
    {
      "resolution_limits": [2.990,2.840],
      "number_observations_unique": 2246,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.094
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 9.300
        }
      ]
    },
    {
      "resolution_limits": [3.170,2.990],
      "number_observations_unique": 2259,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.076
        },
        {
          "type": "Completeness",
          "value": 99.900
        },
        {
          "type": "Redundancy",
          "value": 9.300
        }
      ]
    },
    {
      "resolution_limits": [3.420,3.170],
      "number_observations_unique": 2237,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.064
        },
        {
          "type": "Completeness",
          "value": 99.900
        },
        {
          "type": "Redundancy",
          "value": 9.300
        }
      ]
    },
    {
      "resolution_limits": [3.760,3.420],
      "number_observations_unique": 2270,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.049
        },
        {
          "type": "Completeness",
          "value": 99.700
        },
        {
          "type": "Redundancy",
          "value": 9.000
        }
      ]
    },
    {
      "resolution_limits": [4.310,3.760],
      "number_observations_unique": 2254,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.038
        },
        {
          "type": "Completeness",
          "value": 98.500
        },
        {
          "type": "Redundancy",
          "value": 8.600
        }
      ]
    },
    {
      "resolution_limits": [5.430,4.310],
      "number_observations_unique": 2286,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.031
        },
        {
          "type": "Completeness",
          "value": 97.900
        },
        {
          "type": "Redundancy",
          "value": 8.700
        }
      ]
    },
    {
      "resolution_limits": [50.000,5.430],
      "number_observations_unique": 2391,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.027
        },
        {
          "type": "Completeness",
          "value": 96.900
        },
        {
          "type": "Redundancy",
          "value": 8.600
        }
      ]
    }
  ]

}

Table 1 generated from MXLIMS-JSON (via JavaScript):

  Overall InnerShell OuterShell
Low resolution limit [Å] 50.000 50.000 2.070
High resolution limit [Å] 2.000 5.430 2.030
R(merge) 0.0660 0.0270 0.7330
Completeness [%] 99.4 96.9 99.6
Multiplicity 9.0 8.6 9.0

Binned data generated from MXLIMS-JSON (via JavaScript):

Resolution [Å] R(merge) Completeness [%] Multiplicity
50.000-5.430 0.0270 96.9 8.6
5.430-4.310 0.0310 97.9 8.7
4.310-3.760 0.0380 98.5 8.6
3.760-3.420 0.0490 99.7 9.0
3.420-3.170 0.0640 99.9 9.3
3.170-2.990 0.0760 99.9 9.3
2.990-2.840 0.0940 100.0 9.3
2.840-2.710 0.1150 99.9 9.3
2.710-2.610 0.1270 99.9 9.2
2.610-2.520 0.1560 99.7 9.2
2.520-2.440 0.1810 99.9 9.2
2.440-2.370 0.2210 99.9 9.1
2.370-2.310 0.2640 99.5 9.2
2.310-2.250 0.3080 99.4 9.1
2.250-2.200 0.3600 100.0 8.9
2.200-2.150 0.4120 99.5 9.0
2.150-2.110 0.5080 99.5 9.0
2.110-2.070 0.6280 99.5 8.9
2.070-2.030 0.7330 99.6 9.0
2.030-2.000 0.8390 98.8 8.9