{"id": 1229147, "name": "Hours of work per 1000 lumen hours", "unit": "", "createdAt": "2026-05-12T11:24:47.000Z", "updatedAt": "2026-05-13T05:25:00.000Z", "coverage": "", "timespan": "-100000-1992", "datasetId": 7837, "columnOrder": 0, "shortName": "hours_of_work_per_1000_lumen_hours", "catalogPath": "grapher/core_econ/2019-05-06/espp_1_9/espp_1_9#hours_of_work_per_1000_lumen_hours", "type": "float", "dataChecksum": "2970432803385765792", "metadataChecksum": "-2841868723888469913", "datasetName": "ESPP_1.9", "datasetVersion": "2019-05-06", "nonRedistributable": false, "display": {}, "schemaVersion": 2, "presentation": {}, "dimensions": {"years": {"values": [{"id": -100000}, {"id": -40000}, {"id": -1750}, {"id": 1800}, {"id": 1845}, {"id": 1855}, {"id": 1875}, {"id": 1895}, {"id": 1920}, {"id": 1940}, {"id": 1990}, {"id": 1992}]}, "entities": {"values": [{"id": 355, "name": "World", "code": "OWID_WRL"}]}}, "origins": [{"id": 15073, "title": "Do real output and real wage measures capture reality? The history of lighting suggests not", "producer": "Nordhaus", "citationFull": "William Nordhaus (1998) \"Do Real Output and Real Wage Measures Capture Reality? The History of Lighting Suggests Not\" Cowles Foundation Paper Number 957, Mimeo, Table 1.6.", "urlMain": "http://www.nber.org/chapters/c6064.pdf", "dateAccessed": "2019-05-06", "datePublished": "1998"}]}