The market capitalization of the crypto currency, which reflects the aggregate value of all bitcoins in circulation, was $ 105 billion.
Earlier, at least 2018 was recorded on February 6, when the value of the digital currency dropped to $ 6048. The last time the bitcoin rate fell below $ 6000 last year - October 29, when its value reached $ 5724.
Though even if I get you right, you were talking about the fluctuation of the market value of Bitcoin in the past . The units change in the value of Bitcoin affect the overall market capitalisation of which its could be attributed to so many factors ranging from fources of demand and supply etc.