initial version. downloads historical market data. creates a graph from peak to trough.

2026-05-15 12:54:44 -04:00
commit e234bec1fc
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+index,year,annual_return
+S&P_500,1987,2.0275028695685204
+S&P_500,1988,12.40084149367906
+S&P_500,1989,27.250465340319007
+S&P_500,1990,-6.559137825727013
+S&P_500,1991,26.30670304526097
+S&P_500,1992,4.464263175974903
+S&P_500,1993,7.055156263296847
+S&P_500,1994,-1.539291029147316
+S&P_500,1995,34.11065547708709
+S&P_500,1996,20.263666170303285
+S&P_500,1997,31.008181746570852
+S&P_500,1998,26.66858915596535
+S&P_500,1999,19.526046658878403
+S&P_500,2000,-10.139184665858437
+S&P_500,2001,-13.042693172742602
+S&P_500,2002,-23.365963957103563
+S&P_500,2003,26.38039993281984
+S&P_500,2004,8.993452410946755
+S&P_500,2005,3.0010226581274946
+S&P_500,2006,13.619431738260701
+S&P_500,2007,3.5295730663479574
+S&P_500,2008,-38.485793060906715
+S&P_500,2009,23.45419048834072
+S&P_500,2010,12.782713853760175
+S&P_500,2011,-0.0031836663936912757
+S&P_500,2012,13.40569092662105
+S&P_500,2013,29.601249573324353
+S&P_500,2014,11.390633786748117
+S&P_500,2015,-0.7265997205823549
+S&P_500,2016,9.535022667283656
+S&P_500,2017,19.419965523287928
+S&P_500,2018,-6.2372598496206795
+S&P_500,2019,28.878070225158446
+S&P_500,2020,16.258923055706177
+S&P_500,2021,26.89273866137125
+S&P_500,2022,-19.442827203429268
+S&P_500,2023,24.230500797629894
+S&P_500,2024,23.309002343424012
+S&P_500,2025,16.38780638006745
+S&P_500,2026,9.579143004528511
+NASDAQ,1987,-5.2465563169201594
+NASDAQ,1988,15.40090586883036
+NASDAQ,1989,19.244885965154435
+NASDAQ,1990,-17.810026863253203
+NASDAQ,1991,56.8592953459957
+NASDAQ,1992,15.453487942397913
+NASDAQ,1993,14.74997766236843
+NASDAQ,1994,-3.1977299447297103
+NASDAQ,1995,39.918343281429316
+NASDAQ,1996,22.70632177633518
+NASDAQ,1997,21.635433719631347
+NASDAQ,1998,39.63065402590282
+NASDAQ,1999,85.58529328519458
+NASDAQ,2000,-39.28897076019322
+NASDAQ,2001,-21.05305729179534
+NASDAQ,2002,-31.526353924916616
+NASDAQ,2003,50.00786070250185
+NASDAQ,2004,8.589024828586256
+NASDAQ,2005,1.3735211156328253
+NASDAQ,2006,9.521065613814962
+NASDAQ,2007,9.812071693317748
+NASDAQ,2008,-40.54059104328629
+NASDAQ,2009,43.8875519292083
+NASDAQ,2010,16.910307002962412
+NASDAQ,2011,-1.7988145945999623
+NASDAQ,2012,15.905422833791327
+NASDAQ,2013,38.320119166426856
+NASDAQ,2014,13.39513770485976
+NASDAQ,2015,5.729676898539404
+NASDAQ,2016,7.503079420577463
+NASDAQ,2017,28.241428510525978
+NASDAQ,2018,-3.883749089254507
+NASDAQ,2019,35.225640815441665
+NASDAQ,2020,43.64042567965709
+NASDAQ,2021,21.38911782362838
+NASDAQ,2022,-33.10002734629972
+NASDAQ,2023,43.42308910998989
+NASDAQ,2024,28.641258547731653
+NASDAQ,2025,20.357537743028196
+NASDAQ,2026,14.599569290462044
+DOW_JONES,1987,2.2616633343252923
+DOW_JONES,1988,11.84942039848529
+DOW_JONES,1989,26.959234167370028
+DOW_JONES,1990,-4.341858244317443
+DOW_JONES,1991,20.32039761682789
+DOW_JONES,1992,4.174412197423516
+DOW_JONES,1993,13.722050029483013
+DOW_JONES,1994,2.14032832549238
+DOW_JONES,1995,33.45156516679819
+DOW_JONES,1996,26.013653614904463
+DOW_JONES,1997,22.642193654018005
+DOW_JONES,1998,16.098654758357476
+DOW_JONES,1999,25.2214579701044
+DOW_JONES,2000,-6.167891398754666
+DOW_JONES,2001,-7.104380938655918
+DOW_JONES,2002,-16.763245452582364
+DOW_JONES,2003,25.322269972859445
+DOW_JONES,2004,3.1480042530398045
+DOW_JONES,2005,-0.6075276481139591
+DOW_JONES,2006,16.287850623979484
+DOW_JONES,2007,6.432321658238438
+DOW_JONES,2008,-33.8371011315763
+DOW_JONES,2009,18.819357644906432
+DOW_JONES,2010,11.022770148458694
+DOW_JONES,2011,5.528389244705134
+DOW_JONES,2012,7.256605323040977
+DOW_JONES,2013,26.499416222464877
+DOW_JONES,2014,7.519066835547439
+DOW_JONES,2015,-2.2332909462060457
+DOW_JONES,2016,13.41501510656984
+DOW_JONES,2017,25.080815235454512
+DOW_JONES,2018,-5.630273633379767
+DOW_JONES,2019,22.338387060582775
+DOW_JONES,2020,7.246510514430193
+DOW_JONES,2021,18.727472825084668
+DOW_JONES,2022,-8.781507975454183
+DOW_JONES,2023,13.703366229476055
+DOW_JONES,2024,12.88070856862844
+DOW_JONES,2025,12.972550618290523
+DOW_JONES,2026,4.161537660061176
+RUSSELL_2000,1988,22.38000112774643
+RUSSELL_2000,1989,14.209135601012225
+RUSSELL_2000,1990,-21.45445970776667
+RUSSELL_2000,1991,43.6762532723582
+RUSSELL_2000,1992,16.357792811450732
+RUSSELL_2000,1993,17.003756737296484
+RUSSELL_2000,1994,-3.1826427333195073
+RUSSELL_2000,1995,26.206263161208355
+RUSSELL_2000,1996,14.760889942296028
+RUSSELL_2000,1997,20.52067142882632
+RUSSELL_2000,1998,-3.4460660695597167
+RUSSELL_2000,1999,19.62034558286687
+RUSSELL_2000,2000,-4.20406165838596
+RUSSELL_2000,2001,1.027857885394945
+RUSSELL_2000,2002,-21.578301670851463
+RUSSELL_2000,2003,45.37314429200836
+RUSSELL_2000,2004,16.99736739229143
+RUSSELL_2000,2005,3.322737869383441
+RUSSELL_2000,2006,16.998901907482434
+RUSSELL_2000,2007,-2.7461016917368797
+RUSSELL_2000,2008,-34.80020454740301
+RUSSELL_2000,2009,25.215737183564578
+RUSSELL_2000,2010,25.305810143865305
+RUSSELL_2000,2011,-5.452694464707719
+RUSSELL_2000,2012,14.634507797980323
+RUSSELL_2000,2013,37.00359664409032
+RUSSELL_2000,2014,3.528577223759588
+RUSSELL_2000,2015,-5.711790430181596
+RUSSELL_2000,2016,19.477237001933645
+RUSSELL_2000,2017,13.143914307473835
+RUSSELL_2000,2018,-12.175104687230952
+RUSSELL_2000,2019,23.722333319212364
+RUSSELL_2000,2020,18.36353186022994
+RUSSELL_2000,2021,13.694645455791242
+RUSSELL_2000,2022,-21.55871777000453
+RUSSELL_2000,2023,15.092686801366217
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+RUSSELL_2000,2025,11.288428181003617
+RUSSELL_2000,2026,15.358340523217674