Bitcoin is getting more and more famous and that is because there are now more people that will get to know about it so that is nice for the currency itself.
Bitcoin was just stable for a long time but in the end of the year it will reach a higher value soon and that is nice for the people that have waited a long time.
You could have noticed the reason for such increase in user these days. The halving expectation has reached more people for whom bitcoin is very new. On this base lot users had started using and buying bitcoin this year.