黄金从2000到2021的年化收益率是9.3%
2000 Gold Price in Today's Dollars (dollartimes.com)
2000年 $279/troy ounce. 2021 $1,799. 1 troy ounce = 31.1034768 gram; 即从$9/g涨到了$58/g.
(1+x)21 = 1799 / 279 = 6.448
log10(x+1) = log10(6.448) / 21 = 0.03867194481919521982531178726174
x+1 = 100.03867194481919521982531178726174 = 1.0931303310382800282409958208617
x = 9.3%
6.448 / 21 = 30.7%

2000年买的沙金寿桃,6g,赚了,嘻嘻。
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