A small question for mathematicians-probability theorists. I regularly buy #EuroJackpot, #BingoLoto and #VikingLotto tickets. Every year, my purchases, winnings and winning percentage have been as follows.

Until last year, I bought tickets manually and rather for several consecutive draws at the same time, but since last year with the option of a new standing order.

I would have liked to blame this standing order system for last year's misfortune, but then it turned out that 2017 has been even more exceptionally unfortunate... Strange, isn't it?