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You may also want to look at a chart that has data back to 2013 for long term predictions.

Bitstamp BTCUSD has excellent data, dating back to early 2013 when bitcoin started trading at dollars

Agrees with my longer term base count:

Coin Marketplace

STEEM 0.19
TRX 0.13
JST 0.030
BTC 63526.15
ETH 3387.82
USDT 1.00
SBD 2.56