Data quality metrics extracted from 5k5n.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": "71f7da9daf3424d94b2b197bc5d17b85",
  "space_group_name": "P 1 21 1",
  "unit_cell": {
    "a": 66.293,
    "b": 99.907,
    "c": 66.910,
    "alpha": 90.0,
    "beta": 102.9,
    "gamma": 90.0
  },
  "wavelengths": [1.00000],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [50.0,2.15],
    "number_observations_unique": 44180,
    "quality_factors": [
      {
        "type": "I/SigI",
        "value": 11.0
      },
      {
        "type": "Completeness",
        "value": 95.0
      },
      {
        "type": "Redundancy",
        "value": 3.9
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [2.210,2.150],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.466
        },
        {
          "type": "Completeness",
          "value": 60.600
        },
        {
          "type": "Redundancy",
          "value": 2.500
        }
      ]
    },
    {
      "resolution_limits": [2.280,2.210],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.449
        },
        {
          "type": "Completeness",
          "value": 84.200
        },
        {
          "type": "Redundancy",
          "value": 2.800
        }
      ]
    },
    {
      "resolution_limits": [2.370,2.280],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.429
        },
        {
          "type": "Completeness",
          "value": 96.700
        },
        {
          "type": "Redundancy",
          "value": 3.400
        }
      ]
    },
    {
      "resolution_limits": [2.460,2.370],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.348
        },
        {
          "type": "Completeness",
          "value": 99.800
        },
        {
          "type": "Redundancy",
          "value": 3.900
        }
      ]
    },
    {
      "resolution_limits": [2.570,2.460],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.264
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.200
        }
      ]
    },
    {
      "resolution_limits": [2.710,2.570],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.192
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.200
        }
      ]
    },
    {
      "resolution_limits": [2.880,2.710],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.136
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.200
        }
      ]
    },
    {
      "resolution_limits": [3.100,2.880],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.092
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.300
        }
      ]
    },
    {
      "resolution_limits": [3.410,3.100],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.066
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.300
        }
      ]
    },
    {
      "resolution_limits": [3.910,3.410],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.050
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.300
        }
      ]
    },
    {
      "resolution_limits": [4.920,3.910],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.043
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 4.200
        }
      ]
    },
    {
      "resolution_limits": [50.000,4.920],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.040
        },
        {
          "type": "Completeness",
          "value": 98.000
        },
        {
          "type": "Redundancy",
          "value": 4.100
        }
      ]
    }
  ]

}

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

  Overall InnerShell OuterShell
Low resolution limit [Å] 50.000 50.000 2.280
High resolution limit [Å] 2.150 4.920 2.210
R(merge) - 0.0400 0.4490
Completeness [%] 95.0 98.0 84.2
Multiplicity 3.9 4.1 2.8

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

Resolution [Å] R(merge) Completeness [%] Multiplicity
50.000-4.920 0.0400 98.0 4.1
4.920-3.910 0.0430 100.0 4.2
3.910-3.410 0.0500 100.0 4.3
3.410-3.100 0.0660 100.0 4.3
3.100-2.880 0.0920 100.0 4.3
2.880-2.710 0.1360 100.0 4.2
2.710-2.570 0.1920 100.0 4.2
2.570-2.460 0.2640 100.0 4.2
2.460-2.370 0.3480 99.8 3.9
2.370-2.280 0.4290 96.7 3.4
2.280-2.210 0.4490 84.2 2.8
2.210-2.150 0.4660 60.6 2.5