Unbalanced Drake Spawning Rate?

So I have my own set of issues with the new drakes, but leaving that aside, has anyone noticed that some drakes seem to spawn more frequently then others? No im not talking about how past the third drake they all spawn the same.... blah blah. Im talking about that third drake itself. This will be edited as i play this patch :)

So this patch i have played 18 matches, 1 of which was an aram, so that is being discarded.

OUT OF 15 games the souls that spawned were 6 cloud souls, 8 mountain souls, 2 inferno souls and A SINGULAR ocean soul.

if it was balanced these would all be about 3-5 not 1 and 6.

Is there a reason why its like this or am i just unlucky to have to deal with all these clouds and mountains?

Final count

Mountain: 8 Cloud: 8 Infernal: 4 Ocean: 2