Data quality metrics extracted from 3so4.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": "57328c81d462557f2e5c15f67657fd89",
  "space_group_name": "P 21 21 21",
  "unit_cell": {
    "a": 58.492,
    "b": 113.161,
    "c": 220.848,
    "alpha": 90.0,
    "beta": 90.0,
    "gamma": 90.0
  },
  "wavelengths": [0.97945],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [50.0,3.18],
    "number_observations_unique": 23472,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.171
      },
      {
        "type": "I/SigI",
        "value": 4.800
      },
      {
        "type": "Completeness",
        "value": 92.200
      },
      {
        "type": "Redundancy",
        "value": 3.800
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [3.270,3.200],
      "number_observations_unique": 942,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.716
        },
        {
          "type": "Completeness",
          "value": 56.000
        },
        {
          "type": "Redundancy",
          "value": 2.500
        }
      ]
    },
    {
      "resolution_limits": [3.360,3.270],
      "number_observations_unique": 1117,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.762
        },
        {
          "type": "Completeness",
          "value": 68.500
        },
        {
          "type": "Redundancy",
          "value": 2.800
        }
      ]
    },
    {
      "resolution_limits": [3.450,3.360],
      "number_observations_unique": 1292,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.592
        },
        {
          "type": "Completeness",
          "value": 77.200
        },
        {
          "type": "Redundancy",
          "value": 2.900
        }
      ]
    },
    {
      "resolution_limits": [3.550,3.450],
      "number_observations_unique": 1480,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.573
        },
        {
          "type": "Completeness",
          "value": 89.000
        },
        {
          "type": "Redundancy",
          "value": 3.100
        }
      ]
    },
    {
      "resolution_limits": [3.660,3.550],
      "number_observations_unique": 1610,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.488
        },
        {
          "type": "Completeness",
          "value": 95.300
        },
        {
          "type": "Redundancy",
          "value": 3.400
        }
      ]
    },
    {
      "resolution_limits": [3.790,3.660],
      "number_observations_unique": 1624,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.360
        },
        {
          "type": "Completeness",
          "value": 98.100
        },
        {
          "type": "Redundancy",
          "value": 3.700
        }
      ]
    },
    {
      "resolution_limits": [3.950,3.790],
      "number_observations_unique": 1675,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.377
        },
        {
          "type": "Completeness",
          "value": 99.800
        },
        {
          "type": "Redundancy",
          "value": 3.900
        }
      ]
    },
    {
      "resolution_limits": [4.130,3.950],
      "number_observations_unique": 1682,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.301
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.100
        }
      ]
    },
    {
      "resolution_limits": [4.340,4.130],
      "number_observations_unique": 1662,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.242
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.100
        }
      ]
    },
    {
      "resolution_limits": [4.610,4.340],
      "number_observations_unique": 1705,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.169
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.100
        }
      ]
    },
    {
      "resolution_limits": [4.970,4.610],
      "number_observations_unique": 1712,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.164
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.200
        }
      ]
    },
    {
      "resolution_limits": [5.470,4.970],
      "number_observations_unique": 1692,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.144
        },
        {
          "type": "Completeness",
          "value": 99.900
        },
        {
          "type": "Redundancy",
          "value": 4.200
        }
      ]
    },
    {
      "resolution_limits": [6.260,5.470],
      "number_observations_unique": 1716,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.155
        },
        {
          "type": "Completeness",
          "value": 99.900
        },
        {
          "type": "Redundancy",
          "value": 4.200
        }
      ]
    },
    {
      "resolution_limits": [7.880,6.260],
      "number_observations_unique": 1750,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.099
        },
        {
          "type": "Completeness",
          "value": 99.700
        },
        {
          "type": "Redundancy",
          "value": 4.200
        }
      ]
    },
    {
      "resolution_limits": [50.000,7.880],
      "number_observations_unique": 1813,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.040
        },
        {
          "type": "Completeness",
          "value": 97.000
        },
        {
          "type": "Redundancy",
          "value": 4.000
        }
      ]
    }
  ]

}

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

  Overall InnerShell OuterShell
Low resolution limit [Å] 50.000 50.000 3.360
High resolution limit [Å] 3.180 7.880 3.270
R(merge) 0.1710 0.0400 0.7620
Completeness [%] 92.2 97.0 68.5
Multiplicity 3.8 4.0 2.8

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

Resolution [Å] R(merge) Completeness [%] Multiplicity
50.000-7.880 0.0400 97.0 4.0
7.880-6.260 0.0990 99.7 4.2
6.260-5.470 0.1550 99.9 4.2
5.470-4.970 0.1440 99.9 4.2
4.970-4.610 0.1640 100.0 4.2
4.610-4.340 0.1690 100.0 4.1
4.340-4.130 0.2420 100.0 4.1
4.130-3.950 0.3010 100.0 4.1
3.950-3.790 0.3770 99.8 3.9
3.790-3.660 0.3600 98.1 3.7
3.660-3.550 0.4880 95.3 3.4
3.550-3.450 0.5730 89.0 3.1
3.450-3.360 0.5920 77.2 2.9
3.360-3.270 0.7620 68.5 2.8
3.270-3.200 0.7160 56.0 2.5