What if you have invested $1474 per year for 40 years in S&P 500?

sp500_40yrs_1474peryear.txt

AVG = 1036209.9228178628
MIN = 648236.6946178721
MAX = 1883831.0153112006
Median = 1000298.5276975499

Start 1926, End 1965, Sum 1212329.47
Start 1927, End 1966, Sum 1021426.21
Start 1928, End 1967, Sum 1190142.01
Start 1929, End 1968, Sum 1260362.72
Start 1930, End 1969, Sum 1114411.32
Start 1931, End 1970, Sum 1115010.93
Start 1932, End 1971, Sum 1206813.42
Start 1933, End 1972, Sum 1291802.69
Start 1934, End 1973, Sum 968140.65
Start 1935, End 1974, Sum 648236.69
Start 1936, End 1975, Sum 801308.56
Start 1937, End 1976, Sum 918610.27
Start 1938, End 1977, Sum 801654.56
Start 1939, End 1978, Sum 769923.43
Start 1940, End 1979, Sum 836058.80
Start 1941, End 1980, Sum 1005900.83
Start 1942, End 1981, Sum 849184.13
Start 1943, End 1982, Sum 884490.04
Start 1944, End 1983, Sum 933594.95
Start 1945, End 1984, Sum 865192.46
Start 1946, End 1985, Sum 1000298.53
Start 1947, End 1986, Sum 1065853.19
Start 1948, End 1987, Sum 982596.99
Start 1949, End 1988, Sum 992245.72
Start 1950, End 1989, Sum 1114802.45
Start 1951, End 1990, Sum 923562.27
Start 1952, End 1991, Sum 1050273.75
Start 1953, End 1992, Sum 995980.92
Start 1954, End 1993, Sum 971606.78
Start 1955, End 1994, Sum 856585.00
Start 1956, End 1995, Sum 1063923.04
Start 1957, End 1996, Sum 1201039.39
Start 1958, End 1997, Sum 1467292.21
Start 1959, End 1998, Sum 1691995.15
Start 1960, End 1999, Sum 1883831.02
Start 1961, End 2000, Sum 1579012.77
Start 1962, End 2001, Sum 1274412.06
Start 1963, End 2002, Sum 921377.92
Start 1964, End 2003, Sum 1085256.72
Start 1965, End 2004, Sum 1112625.00
Start 1966, End 2005, Sum 1085631.61
Start 1967, End 2006, Sum 1173119.61
Start 1968, End 2007, Sum 1138632.28
Start 1969, End 2008, Sum 667225.41
Start 1970, End 2009, Sum 787518.11
Start 1971, End 2010, Sum 834730.27
Start 1972, End 2011, Sum 782099.19
Start 1973, End 2012, Sum 836135.15
Start 1974, End 2013, Sum 1027894.75
Start 1975, End 2014, Sum 1062359.77
Start 1976, End 2015, Sum 929706.05
Start 1977, End 2016, Sum 921116.13
Start 1978, End 2017, Sum 1004529.44
Start 1979, End 2018, Sum 838874.69
Start 1980, End 2019, Sum 953117.11
Start 1981, End 2020, Sum 978429.79
Start 1982, End 2021, Sum 1113681.21