Data quality metrics extracted from 6k88.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": "ddb8951d7503f81a89defc4b5a556dfe",
  "space_group_name": "P 21 21 21",
  "unit_cell": {
    "a": 42.876,
    "b": 70.727,
    "c": 146.403,
    "alpha": 90.0,
    "beta": 90.0,
    "gamma": 90.0
  },
  "wavelengths": [0.97913],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [50.000,1.800],
    "number_observations": 498505,
    "number_observations_unique": 42755,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.173
      },
      {
        "type": "R(meas)",
        "value": 0.181
      },
      {
        "type": "R(pim)",
        "value": 0.052
      },
      {
        "type": "I/SigI",
        "value": 7.600
      },
      {
        "type": "Completeness",
        "value": 99.600
      },
      {
        "type": "Redundancy",
        "value": 11.700
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [1.860,1.800],
      "number_observations_unique": 4210,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.287
        },
        {
          "type": "R(meas)",
          "value": 1.349
        },
        {
          "type": "R(pim)",
          "value": 0.394
        },
        {
          "type": "Completeness",
          "value": 99.700
        },
        {
          "type": "Redundancy",
          "value": 11.400
        },
        {
          "type": "CC(1/2)",
          "value": 0.706
        }
      ]
    },
    {
      "resolution_limits": [1.940,1.860],
      "number_observations_unique": 4195,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.831
        },
        {
          "type": "R(meas)",
          "value": 0.869
        },
        {
          "type": "R(pim)",
          "value": 0.251
        },
        {
          "type": "Completeness",
          "value": 99.500
        },
        {
          "type": "Redundancy",
          "value": 11.700
        },
        {
          "type": "CC(1/2)",
          "value": 0.834
        }
      ]
    },
    {
      "resolution_limits": [2.030,1.940],
      "number_observations_unique": 4230,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.600
        },
        {
          "type": "R(meas)",
          "value": 0.629
        },
        {
          "type": "R(pim)",
          "value": 0.184
        },
        {
          "type": "Completeness",
          "value": 99.600
        },
        {
          "type": "Redundancy",
          "value": 11.400
        },
        {
          "type": "CC(1/2)",
          "value": 0.886
        }
      ]
    },
    {
      "resolution_limits": [2.130,2.030],
      "number_observations_unique": 4207,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.424
        },
        {
          "type": "R(meas)",
          "value": 0.444
        },
        {
          "type": "R(pim)",
          "value": 0.129
        },
        {
          "type": "Completeness",
          "value": 99.600
        },
        {
          "type": "Redundancy",
          "value": 11.500
        },
        {
          "type": "CC(1/2)",
          "value": 0.933
        }
      ]
    },
    {
      "resolution_limits": [2.270,2.130],
      "number_observations_unique": 4224,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.313
        },
        {
          "type": "R(meas)",
          "value": 0.327
        },
        {
          "type": "R(pim)",
          "value": 0.093
        },
        {
          "type": "Completeness",
          "value": 99.600
        },
        {
          "type": "Redundancy",
          "value": 12.000
        },
        {
          "type": "CC(1/2)",
          "value": 0.955
        }
      ]
    },
    {
      "resolution_limits": [2.440,2.270],
      "number_observations_unique": 4270,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.255
        },
        {
          "type": "R(meas)",
          "value": 0.267
        },
        {
          "type": "R(pim)",
          "value": 0.077
        },
        {
          "type": "Completeness",
          "value": 99.700
        },
        {
          "type": "Redundancy",
          "value": 11.500
        },
        {
          "type": "CC(1/2)",
          "value": 0.970
        }
      ]
    },
    {
      "resolution_limits": [2.690,2.440],
      "number_observations_unique": 4224,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.213
        },
        {
          "type": "R(meas)",
          "value": 0.223
        },
        {
          "type": "R(pim)",
          "value": 0.064
        },
        {
          "type": "Completeness",
          "value": 99.100
        },
        {
          "type": "Redundancy",
          "value": 11.500
        },
        {
          "type": "CC(1/2)",
          "value": 0.978
        }
      ]
    },
    {
      "resolution_limits": [3.080,2.690],
      "number_observations_unique": 4300,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.182
        },
        {
          "type": "R(meas)",
          "value": 0.190
        },
        {
          "type": "R(pim)",
          "value": 0.054
        },
        {
          "type": "Completeness",
          "value": 99.200
        },
        {
          "type": "Redundancy",
          "value": 11.900
        },
        {
          "type": "CC(1/2)",
          "value": 0.969
        }
      ]
    },
    {
      "resolution_limits": [3.880,3.080],
      "number_observations_unique": 4317,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.161
        },
        {
          "type": "R(meas)",
          "value": 0.168
        },
        {
          "type": "R(pim)",
          "value": 0.047
        },
        {
          "type": "Completeness",
          "value": 99.500
        },
        {
          "type": "Redundancy",
          "value": 11.700
        },
        {
          "type": "CC(1/2)",
          "value": 0.985
        }
      ]
    },
    {
      "resolution_limits": [50.000,3.880],
      "number_observations_unique": 4578,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.146
        },
        {
          "type": "R(meas)",
          "value": 0.152
        },
        {
          "type": "R(pim)",
          "value": 0.043
        },
        {
          "type": "Completeness",
          "value": 99.800
        },
        {
          "type": "Redundancy",
          "value": 12.000
        },
        {
          "type": "CC(1/2)",
          "value": 0.988
        }
      ]
    }
  ]

}

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

  Overall InnerShell OuterShell
Low resolution limit [Å] 50.000 50.000 1.940
High resolution limit [Å] 1.800 3.880 1.860
R(merge) 0.1730 0.1460 0.8310
R(meas) 0.1810 0.1520 0.8690
R(pim) 0.0520 0.0430 0.2510
CC(1/2) - 0.988 0.834
Completeness [%] 99.6 99.8 99.5
Multiplicity 11.7 12.0 11.7

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

Resolution [Å] R(merge) R(meas) R(pim) CC(1/2) Completeness [%] Multiplicity
50.000-3.880 0.1460 0.1520 0.0430 0.988 99.8 12.0
3.880-3.080 0.1610 0.1680 0.0470 0.985 99.5 11.7
3.080-2.690 0.1820 0.1900 0.0540 0.969 99.2 11.9
2.690-2.440 0.2130 0.2230 0.0640 0.978 99.1 11.5
2.440-2.270 0.2550 0.2670 0.0770 0.970 99.7 11.5
2.270-2.130 0.3130 0.3270 0.0930 0.955 99.6 12.0
2.130-2.030 0.4240 0.4440 0.1290 0.933 99.6 11.5
2.030-1.940 0.6000 0.6290 0.1840 0.886 99.6 11.4
1.940-1.860 0.8310 0.8690 0.2510 0.834 99.5 11.7
1.860-1.800 1.2870 1.3490 0.3940 0.706 99.7 11.4