what is the market cap of bitcoin in 2015

On December 31, 2015, Bitcoin (BTC) had a market capitalization of $6.5B, based on 15.03M coins issued at a price of $430.57.

DATE CLOSE VOLUME BTC MINED MARKET CAP
December 31 2015
$430.57
45,996,600
15,029,525
$6,471,217,490.68
December 30 2015
$426.62
46,889,400
15,025,975
$6,410,381,454.50
December 29 2015
$432.98
51,596,500
15,021,850
$6,504,205,678.55
December 28 2015
$422.28
49,638,600
15,017,875
$6,341,733,237.13
December 27 2015
$422.82
53,591,200
15,014,100
$6,348,306,804.30
December 26 2015
$417.27
116,166,000
15,008,975
$6,262,855,034.15
December 25 2015
$455.65
39,078,500
15,004,700
$6,836,936,569.10
December 24 2015
$454.99
57,157,200
15,000,650
$6,825,070,740.25
December 23 2015
$442.40
47,161,400
14,997,200
$6,634,776,277.20
December 22 2015
$436.57
50,840,400
14,993,275
$6,545,644,053.30
December 21 2015
$438.64
77,639,696
14,989,525
$6,574,990,256.48
December 20 2015
$442.69
75,409,400
14,985,800
$6,633,988,873.00
December 19 2015
$462.32
47,892,700
14,981,675
$6,926,357,949.35
December 18 2015
$463.62
60,220,100
14,977,750
$6,943,924,544.00
December 17 2015
$456.08
47,978,400
14,973,525
$6,829,095,334.95
December 16 2015
$454.93
107,944,000
14,969,650
$6,810,202,753.10
December 15 2015
$465.32
83,121,104
14,965,575
$6,963,796,324.58
December 14 2015
$444.18
130,496,000
14,961,000
$6,645,406,902.00
December 13 2015
$433.76
55,050,600
14,956,125
$6,487,293,999.38
December 12 2015
$435.00
131,969,000
14,952,575
$6,504,325,267.28
December 11 2015
$451.94
110,944,000
14,948,525
$6,755,806,491.45
December 10 2015
$415.48
52,138,900
14,944,525
$6,209,136,302.47
December 09 2015
$417.56
90,917,200
14,939,125
$6,238,025,852.38
December 08 2015
$415.56
57,801,400
14,934,925
$6,206,402,237.78
December 07 2015
$395.54
63,455,800
14,930,550
$5,905,570,024.80