{"updated": "2026-04-19", "summary": {"years": 28, "startYear": 1999, "endYear": 2026, "avgPriceReturn": 7.89, "avgDividendReturn": 1.3, "avgTotalReturn": 10.69, "avgBuybackYield": 1.5, "positiveTotalYears": 22, "bestYear": {"year": 2013, "totalReturn": 32.4}, "worstYear": {"year": 2008, "totalReturn": -35.69}}, "source": {"priceReturn": "Macrotrends S&P 500 Annual Returns", "dividendYield": "multpl.com S&P 500 Dividend Yield", "buybackYield": "S&P Dow Jones Indices Quarterly Buyback Reports（估算的年化净回购收益率）"}, "note": "Price returns from Macrotrends. Dividend and buyback yields are historical averages.", "series": [{"year": 1999, "priceReturn": 19.53, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 22.33}, {"year": 2000, "priceReturn": -10.14, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": -7.34}, {"year": 2001, "priceReturn": -13.04, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": -10.24}, {"year": 2002, "priceReturn": -23.37, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": -20.57}, {"year": 2003, "priceReturn": 26.38, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 29.18}, {"year": 2004, "priceReturn": 8.99, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 11.79}, {"year": 2005, "priceReturn": 3.0, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 5.8}, {"year": 2006, "priceReturn": 13.62, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 16.42}, {"year": 2007, "priceReturn": 3.53, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 6.33}, {"year": 2008, "priceReturn": -38.49, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": -35.69}, {"year": 2009, "priceReturn": 23.45, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 26.25}, {"year": 2010, "priceReturn": 12.78, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 15.58}, {"year": 2011, "priceReturn": 0.0, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 2.8}, {"year": 2012, "priceReturn": 13.41, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 16.21}, {"year": 2013, "priceReturn": 29.6, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 32.4}, {"year": 2014, "priceReturn": 11.39, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 14.19}, {"year": 2015, "priceReturn": -0.73, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 2.07}, {"year": 2016, "priceReturn": 9.54, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 12.34}, {"year": 2017, "priceReturn": 19.42, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 22.22}, {"year": 2018, "priceReturn": -6.24, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": -3.44}, {"year": 2019, "priceReturn": 28.88, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 31.68}, {"year": 2020, "priceReturn": 16.26, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 19.06}, {"year": 2021, "priceReturn": 26.89, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 29.69}, {"year": 2022, "priceReturn": -19.44, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": -16.64}, {"year": 2023, "priceReturn": 24.23, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 27.03}, {"year": 2024, "priceReturn": 23.31, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 26.11}, {"year": 2025, "priceReturn": 16.39, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 19.19}, {"year": 2026, "priceReturn": 1.78, "dividendReturn": 1.3, "buybackYield": 1.5, "totalReturn": 4.58}]}