The differences are not meaningful. They're 0.0000000000014 or along those lines.
If differences of this size are meaningful you're going to have issues with any software because numerical precision is an issue with anything that uses binary representation of numbers, ie computers today. Until quantam computing is more real.
That's not to say that you can't work around these obstacles if needed. There's an entire section in the SAS documentation dedicated to numerical precision.
http://support.sas.com/documentation/cdl/en/lrcon/69852/HTML/default/viewer.htm#p0ji1unv6thm0dn1gp4t01a1u0g6.htm
... View more