You can recreate that pattern at home by rolling dice. Take 1 6-sided die and roll it 10 times. Then roll it 20 times. You will get very uneven distribution of the numbers (i.e., 3 sixes, 6 fives, 1 four, 3 threes, 5 twos, 2 ones).This is the pattern I was seeing earlier.View attachment 37813View attachment 37814
One thing did change since then and that was that I did get a completed "Gates to Hell Collection".
If you are into stats, this is called random selection with replacement. Each time you roll the die, there are equal chances one number will be on top. These chances reset each time you roll the die (i.e., rolling a 5 one time has no bearing on the results from the next die roll).
If you roll the die 1000 times, you will be pretty close to an even distribution of the numbers.