I was able to perceive all of them, using the "focus on something behind the plane of the monitor surface" technique (rather than the "bring your face up close and slowly move away while keeping your eyes focused the same" technique, which I find has been a bit hit-and-miss).

I found that the π and ∞ stereograms were easier for me than the graph ones, as it's easier to snap to focus once you recognise the general outline of the shape. The graph ones were a bit harder for me, although that may just be the colours used.