Hanif, You have a quick mind, woow, am amazed at all the calculations you have made. :) 75000 /365 = 205 years .. brilliant.. but what you missed is the fact that Gautier says its Sri Ravi Shankar's "soldiers of peace" ( Means his disciples :) FYI ) have conducted all those courses and achieved other things. So I safely assume that there are about 100 disciples of his conducting these courses concurrently. Now what are the numbers again 75000 / 365 / 100 = 2 years. Does that seem reasonable ?
