Considering the level of adoption of Bitcoin globally, I think that 6.2 percent is quiet significant and I think it will grow more in the future as Bitcoin will get known. I think that Bitcoin is growing its popularity not that fast but as the time goes by the popularity increases exponentially especially when the price skyrocketed and more people would join especially now  that some countries are legalizing Bitcoin and some well known personalities and companies are using cryptocurrencies then that would lead people to believe more on Bitcoin.