Welcome, Again, to the Nostradamus Server!

I am impressed! Your guess that my number begins with 315735619 was exactly right!
What do you guess are the next two digits of my number?
31573561900
31573561901
31573561902
31573561903
31573561904
31573561905
31573561906
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31573561918
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31573561998
31573561999