{ "metadata": { "source": "Robert Shiller - Yale Economics", "last_updated": "2025-12-22T09:08:09.647064", "description": "U.S. Stock Market Data including S&P 500, earnings, dividends, and CAPE ratio", "start_date": "1871-01-01", "end_date": "2025-12-01", "total_records": 1860 }, "data": [ { "date": 1871.01, "sp500": 4.44, "dividend": 6.788211234996863, "earnings": 10.443401899995175, "cpi": 12.46406116, "date_fraction": 1871.0416666666667, "long_interest_rate": 5.32, "real_price": 115.92176108994644, "Price.1": 115.92176108994644, "Earnings.1": 10.443401899995175, "cape": null, "Unnamed: 13": null, "tr_cape": null, "Unnamed: 15": null, "Yield": null, "Returns": 1.0041769357097787, "Returns.1": 1.0, "Real Return": 0.13060944596425683, "Real Return.1": 0.09250367635209922, "Returns.2": 0.038105769612157614, "year": 1871, "month": 1, "date_string": "1871-01-01" }, { "date": 1871.02, "sp500": 4.5, "dividend": 6.587080004192756, "earnings": 10.133969237219624, "cpi": 12.84464132, 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