| Level                                       | Population (N  i ) (1020 cm-3)              | Fraction (%)            | Total transition rate (N  i  A  i ) (1022 cm-3 s-1) |
| 1(4I15/2)                                   | 7.58                                        | 93.1                    |                                                     |
| 2(4I13/2)                                   | 0.39                                        | 4.8                     | 8.53                                                |
| 3(4I11/2)                                   | 0.15                                        | 1.8                     | 5.25                                                |
| 4(4I9/2)                                    | 0.03                                        | 0.4                     | 6.36                                                |
| 5(4F9/2)                                    | 0                                           | 0                       | 0                                                   |
| 6(4S3/2 + 2H11/2 + 4F7/2)                   | 0                                           | 0                       | 0.42                                                |
|                                             |                                             |                         |                                                     |
| Energy transfer coefficient (10-18 cm3 s-1) | Energy transfer coefficient (10-18 cm3 s-1) | N  i xN  j  (1038 cm-6) | CxN  i xN  j  (1022 cm-3 s-1)                       |
| C 2                                         | 40                                          | 15.1                    | 6.03                                                |
| C 2r                                        | 5                                           | 24.3                    | 1.22                                                |
| C 3                                         | 20                                          | 2.1                     | 0.42                                                |

Caption: Population of each level and total transition and energy transfer rates for 5 mol% Er sample in the excitation of 17.7 kW/cm2 pump power at 1.5 mm

You are provided with a table from a material science paper. Here are JSON templates for two types of numeric cells: "Other" and "Glass_Compound_Amount":
{"value": "xx", "type": "Other"}
{"value": "xx", "type": "Glass_Compound_Amount", "constituent": "xx", "unit": "xx", "material": "xx"}

Please describe all numeric cells in the above table following the JSON templates (proceeding by row in a left-right, top-down direction). For each cell, output one JSON description per line. For any unanswerable attributes in the templates, set their value to the placeholder "xx".

Cell Description:
{"value": "1", "type": "Other"}
{"value": "7.58", "type": "Other"}
{"value": "93.1", "type": "Other"}
{"value": "2", "type": "Other"}
{"value": "0.39", "type": "Other"}
{"value": "4.8", "type": "Other"}
{"value": "8.53", "type": "Other"}
{"value": "3", "type": "Other"}
{"value": "0.15", "type": "Other"}
{"value": "1.8", "type": "Other"}
{"value": "5.25", "type": "Other"}
{"value": "4", "type": "Other"}
{"value": "0.03", "type": "Other"}
{"value": "0.4", "type": "Other"}
{"value": "6.36", "type": "Other"}
{"value": "5", "type": "Other"}
{"value": "0", "type": "Other"}
{"value": "0", "type": "Other"}
{"value": "0", "type": "Other"}
{"value": "6", "type": "Other"}
{"value": "0", "type": "Other"}
{"value": "0", "type": "Other"}
{"value": "0.42", "type": "Other"}
{"value": "40", "type": "Other"}
{"value": "15.1", "type": "Other"}
{"value": "6.03", "type": "Other"}
{"value": "5", "type": "Other"}
{"value": "24.3", "type": "Other"}
{"value": "1.22", "type": "Other"}
{"value": "20", "type": "Other"}
{"value": "2.1", "type": "Other"}
{"value": "0.42", "type": "Other"}