why don't we take period 1971 to 2016 - a brave new world of modern economics (fast forward gold standard, wars and other barbarities). standard and poors grew

why don't we take period 1971 to 2016 - a brave new world of modern economics (fast forward gold standard, wars and other barbarities). standard and poors grew from 100 to 2,100 (i.e. about 20 times). farm land price grew from 200 to 3,000 (i.e. 15 times) and it grew straight like an arrow, except for a small hump in 1980's. unlike stock market unicorns. nothing disappointing about this! this is a 5 min back of an envelope calculation, correct me if i am missing something.