According to the WSJ.com and FlipsideCrypto.com.
Only approximately 14% of the 18 million outstanding bitcoins exchanged hands in the last week of November, down over 50% from October last year, according to recent Flipside Crypto data. One reason for the slowdown could be the “sobering reality that creating new global monetary standards requires more than computer code,” per The Wall Street Journal. The majority of bitcoin is controlled by a relatively small group, with about 8.5% of bitcoin wallets of the 44 million holding 99% of all the bitcoin in circulation.