You can make it 6 out of 8 years, this year is now inluded in the list, Bitcoin is making a very good rally this month after a record breaking bear trend last year, Bitcoin has become very predictable and performing very well in those particular month and hopefully before the end of the year we will another all time high, because a lot of great news are coming.
it is still depends because there are some whales that who manipulate or stops the bullish run by selling most of their holdings and bought again after gaining quick profit and the price still has no huge changes because they already stops the trend. I believe it will be going strong over the years but this time the price is only stabilizing.