I could be wrong, but after pow period using the current money supply and not considering any future pos(from today to end of pow), it appears the total amount will be

"moneysupply" : 1568608.73568237,
current blocks:18233

18234-19000:23010
19001-19500:10000
19501-20000:50000

total(roughly)~~~~~1,651,618

about 600,000 less than estimated.

This rare coin got rarer!