Data quality metrics extracted from 3rer.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": "910cf5bb46b2ea04be727f81b160ce31",
  "space_group_name": "P 1",
  "unit_cell": {
    "a": 37.97,
    "b": 52.38,
    "c": 55.52,
    "alpha": 106.17,
    "beta": 101.42,
    "gamma": 98.95
  },
  "wavelengths": [0.97930],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [51.570,1.699],
    "number_observations_unique": 41454,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.046
      },
      {
        "type": "I/SigI",
        "value": 18.100
      },
      {
        "type": "Completeness",
        "value": 95.800
      },
      {
        "type": "Redundancy",
        "value": 4.000
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [1.790,1.700],
      "number_observations": 23520,
      "number_observations_unique": 5991,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.138
        },
        {
          "type": "R(meas)",
          "value": 0.160
        },
        {
          "type": "R(pim)",
          "value": 0.080
        },
        {
          "type": "I/SigI",
          "value": 5.400
        },
        {
          "type": "Completeness",
          "value": 94.500
        },
        {
          "type": "Redundancy",
          "value": 3.900
        }
      ]
    },
    {
      "resolution_limits": [1.900,1.790],
      "number_observations": 22419,
      "number_observations_unique": 5660,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.098
        },
        {
          "type": "R(meas)",
          "value": 0.113
        },
        {
          "type": "R(pim)",
          "value": 0.057
        },
        {
          "type": "I/SigI",
          "value": 7.400
        },
        {
          "type": "Completeness",
          "value": 94.600
        },
        {
          "type": "Redundancy",
          "value": 4.000
        }
      ]
    },
    {
      "resolution_limits": [2.030,1.900],
      "number_observations": 21353,
      "number_observations_unique": 5390,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.070
        },
        {
          "type": "R(meas)",
          "value": 0.081
        },
        {
          "type": "R(pim)",
          "value": 0.041
        },
        {
          "type": "I/SigI",
          "value": 10.000
        },
        {
          "type": "Completeness",
          "value": 95.900
        },
        {
          "type": "Redundancy",
          "value": 4.000
        }
      ]
    },
    {
      "resolution_limits": [2.190,2.030],
      "number_observations": 19806,
      "number_observations_unique": 5001,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.059
        },
        {
          "type": "R(meas)",
          "value": 0.068
        },
        {
          "type": "R(pim)",
          "value": 0.034
        },
        {
          "type": "I/SigI",
          "value": 11.200
        },
        {
          "type": "Completeness",
          "value": 95.900
        },
        {
          "type": "Redundancy",
          "value": 4.000
        }
      ]
    },
    {
      "resolution_limits": [2.400,2.190],
      "number_observations": 18425,
      "number_observations_unique": 4647,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.053
        },
        {
          "type": "R(meas)",
          "value": 0.061
        },
        {
          "type": "R(pim)",
          "value": 0.031
        },
        {
          "type": "I/SigI",
          "value": 12.200
        },
        {
          "type": "Completeness",
          "value": 96.000
        },
        {
          "type": "Redundancy",
          "value": 4.000
        }
      ]
    },
    {
      "resolution_limits": [2.690,2.400],
      "number_observations": 16540,
      "number_observations_unique": 4175,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.049
        },
        {
          "type": "R(meas)",
          "value": 0.056
        },
        {
          "type": "R(pim)",
          "value": 0.028
        },
        {
          "type": "I/SigI",
          "value": 13.300
        },
        {
          "type": "Completeness",
          "value": 96.700
        },
        {
          "type": "Redundancy",
          "value": 4.000
        }
      ]
    },
    {
      "resolution_limits": [3.100,2.690],
      "number_observations": 14842,
      "number_observations_unique": 3748,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.045
        },
        {
          "type": "R(meas)",
          "value": 0.052
        },
        {
          "type": "R(pim)",
          "value": 0.026
        },
        {
          "type": "I/SigI",
          "value": 13.800
        },
        {
          "type": "Completeness",
          "value": 97.200
        },
        {
          "type": "Redundancy",
          "value": 4.000
        }
      ]
    },
    {
      "resolution_limits": [3.800,3.100],
      "number_observations": 12498,
      "number_observations_unique": 3157,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.041
        },
        {
          "type": "R(meas)",
          "value": 0.047
        },
        {
          "type": "R(pim)",
          "value": 0.024
        },
        {
          "type": "I/SigI",
          "value": 14.600
        },
        {
          "type": "Completeness",
          "value": 97.300
        },
        {
          "type": "Redundancy",
          "value": 4.000
        }
      ]
    },
    {
      "resolution_limits": [5.370,3.800],
      "number_observations": 9620,
      "number_observations_unique": 2437,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.036
        },
        {
          "type": "R(meas)",
          "value": 0.041
        },
        {
          "type": "R(pim)",
          "value": 0.021
        },
        {
          "type": "I/SigI",
          "value": 17.500
        },
        {
          "type": "Completeness",
          "value": 97.900
        },
        {
          "type": "Redundancy",
          "value": 3.900
        }
      ]
    },
    {
      "resolution_limits": [27.529,5.370],
      "number_observations": 4824,
      "number_observations_unique": 1248,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.034
        },
        {
          "type": "R(meas)",
          "value": 0.040
        },
        {
          "type": "R(pim)",
          "value": 0.020
        },
        {
          "type": "I/SigI",
          "value": 19.300
        },
        {
          "type": "Completeness",
          "value": 91.500
        },
        {
          "type": "Redundancy",
          "value": 3.900
        }
      ]
    }
  ]

}

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

  Overall InnerShell OuterShell
Low resolution limit [Å] 51.570 27.529 1.900
High resolution limit [Å] 1.699 5.370 1.790
R(merge) 0.0460 0.0340 0.0980
R(meas) - 0.0400 0.1130
R(pim) - 0.0200 0.0570
Completeness [%] 95.8 91.5 94.6
Multiplicity 4.0 3.9 4.0

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

Resolution [Å] R(merge) R(meas) R(pim) Completeness [%] Multiplicity
27.529-5.370 0.0340 0.0400 0.0200 91.5 3.9
5.370-3.800 0.0360 0.0410 0.0210 97.9 3.9
3.800-3.100 0.0410 0.0470 0.0240 97.3 4.0
3.100-2.690 0.0450 0.0520 0.0260 97.2 4.0
2.690-2.400 0.0490 0.0560 0.0280 96.7 4.0
2.400-2.190 0.0530 0.0610 0.0310 96.0 4.0
2.190-2.030 0.0590 0.0680 0.0340 95.9 4.0
2.030-1.900 0.0700 0.0810 0.0410 95.9 4.0
1.900-1.790 0.0980 0.1130 0.0570 94.6 4.0
1.790-1.700 0.1380 0.1600 0.0800 94.5 3.9