Data quality metrics extracted from 3t4g.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": "6bc842a5623c6b16f9a30a9ff9bf1bcc",
  "space_group_name": "P 2 3",
  "unit_cell": {
    "a": 44.39,
    "b": 44.39,
    "c": 44.39,
    "alpha": 90.0,
    "beta": 90.0,
    "gamma": 90.0
  },
  "wavelengths": [0.91960,1.84430],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [18.12,1.700],
    "number_observations_unique": 3384,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.035
      },
      {
        "type": "I/SigI",
        "value": 29.740
      },
      {
        "type": "Completeness",
        "value": 99.500
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [1.740,1.700],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.513
        },
        {
          "type": "I/SigI",
          "value": 3.070
        },
        {
          "type": "Completeness",
          "value": 95.900
        }
      ]
    },
    {
      "resolution_limits": [1.790,1.740],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.547
        },
        {
          "type": "I/SigI",
          "value": 3.730
        },
        {
          "type": "Completeness",
          "value": 99.600
        }
      ]
    },
    {
      "resolution_limits": [1.840,1.790],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.394
        },
        {
          "type": "I/SigI",
          "value": 5.580
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [1.900,1.840],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.315
        },
        {
          "type": "I/SigI",
          "value": 7.120
        },
        {
          "type": "Completeness",
          "value": 99.100
        }
      ]
    },
    {
      "resolution_limits": [1.960,1.900],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.216
        },
        {
          "type": "I/SigI",
          "value": 9.790
        },
        {
          "type": "Completeness",
          "value": 100.0
        }
      ]
    },
    {
      "resolution_limits": [2.030,1.960],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.192
        },
        {
          "type": "I/SigI",
          "value": 11.440
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [2.100,2.030],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.137
        },
        {
          "type": "I/SigI",
          "value": 16.160
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [2.190,2.100],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.109
        },
        {
          "type": "I/SigI",
          "value": 20.400
        },
        {
          "type": "Completeness",
          "value": 99.500
        }
      ]
    },
    {
      "resolution_limits": [2.290,2.190],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.096
        },
        {
          "type": "I/SigI",
          "value": 21.760
        },
        {
          "type": "Completeness",
          "value": 100.0
        }
      ]
    },
    {
      "resolution_limits": [2.400,2.290],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.110
        },
        {
          "type": "I/SigI",
          "value": 19.870
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [2.530,2.400],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.056
        },
        {
          "type": "I/SigI",
          "value": 37.630
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [2.680,2.530],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.057
        },
        {
          "type": "I/SigI",
          "value": 33.510
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [2.870,2.680],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.046
        },
        {
          "type": "I/SigI",
          "value": 44.380
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.100,2.870],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.033
        },
        {
          "type": "I/SigI",
          "value": 59.290
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.390,3.100],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.027
        },
        {
          "type": "I/SigI",
          "value": 64.670
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.790,3.390],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.020
        },
        {
          "type": "I/SigI",
          "value": 76.620
        },
        {
          "type": "Completeness",
          "value": 98.400
        }
      ]
    },
    {
      "resolution_limits": [4.380,3.790],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.017
        },
        {
          "type": "I/SigI",
          "value": 92.620
        },
        {
          "type": "Completeness",
          "value": 100.0
        }
      ]
    },
    {
      "resolution_limits": [5.360,4.380],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.017
        },
        {
          "type": "I/SigI",
          "value": 93.460
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [7.580,5.360],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.016
        },
        {
          "type": "I/SigI",
          "value": 87.140
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [18.12,7.580],
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.015
        },
        {
          "type": "I/SigI",
          "value": 84.590
        },
        {
          "type": "Completeness",
          "value": 89.800
        }
      ]
    }
  ]

}

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

  Overall InnerShell OuterShell
Low resolution limit [Å] 18.120 18.120 1.790
High resolution limit [Å] 1.700 7.580 1.740
R(merge) 0.0350 0.0150 0.5470
Completeness [%] 99.5 89.8 99.6

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

Resolution [Å] R(merge) Completeness [%]
18.120-7.580 0.0150 89.8
7.580-5.360 0.0160 100.0
5.360-4.380 0.0170 100.0
4.380-3.790 0.0170 100.0
3.790-3.390 0.0200 98.4
3.390-3.100 0.0270 100.0
3.100-2.870 0.0330 100.0
2.870-2.680 0.0460 100.0
2.680-2.530 0.0570 100.0
2.530-2.400 0.0560 100.0
2.400-2.290 0.1100 100.0
2.290-2.190 0.0960 100.0
2.190-2.100 0.1090 99.5
2.100-2.030 0.1370 100.0
2.030-1.960 0.1920 100.0
1.960-1.900 0.2160 100.0
1.900-1.840 0.3150 99.1
1.840-1.790 0.3940 100.0
1.790-1.740 0.5470 99.6
1.740-1.700 0.5130 95.9