{"key": "airport_ops.anc.monthly", "label": "Airport tower operations \u2014 Anchorage International Airport (ANC)", "unit": "operations", "frequency": "monthly", "source": "FAA Air Traffic Activity System (ATADS) / OPSNET", "license": null, "points": [["1989-10-01", 17655.0], ["1989-11-01", 15857.0], ["1989-12-01", 13299.0], ["1990-01-01", 13291.0], ["1990-02-01", 13081.0], ["1990-03-01", 17196.0], ["1990-04-01", 18043.0], ["1990-05-01", 21279.0], ["1990-06-01", 23231.0], ["1990-07-01", 23544.0], ["1990-08-01", 23524.0], ["1990-09-01", 18657.0], ["1990-10-01", 18545.0], ["1990-11-01", 15648.0], ["1990-12-01", 15220.0], ["1991-01-01", 14451.0], ["1991-02-01", 14255.0], ["1991-03-01", 16238.0], ["1991-04-01", 18888.0], ["1991-05-01", 21097.0], ["1991-06-01", 24054.0], ["1991-07-01", 24988.0], ["1991-08-01", 24811.0], ["1991-09-01", 20237.0], ["1991-10-01", 19200.0], ["1991-11-01", 16946.0], ["1991-12-01", 17248.0], ["1992-01-01", 17355.0], ["1992-02-01", 16459.0], ["1992-03-01", 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