This is a wordle showing the primary and secondary MRCLASSes of our papers since 2014, according to MathScinet, with size proportional to the logarithm of the absolute frequency:
These are the actual distinct MRCLASSes in separated lists:
Primary: 01A70, 05C15, 05C31, 05C80, 11A05, 11A07, 11A41, 11A51, 11B05, 11B13, 11B30, 11B75, 11B83, 11F30, 11F41, 11F72, 11H06, 11J70, 11L03, 11L07, 11N05, 11N32, 11N36, 11N37, 11P21, 11P70, 22E40, 26A42, 30F30, 30H35, 33F05, 35J61, 35Q31, 35Q35, 35Q86, 35R11, 35R60, 37A05, 37A25, 37B99, 40A05, 42A16, 42A32, 42B10, 42B20, 42B25, 42B37, 46E35, 47A15, 51E20, 57S20, 58C40, 58J40, 60E05, 60G50, 60H15, 76W05, 81T13, 86A08, 86A10.
Secondary: 05A10, 05A15, 05A16, 05A20, 05B10, 05C15, 05C65, 05C72, 05D40, 05D99, 11A63, 11B13, 11B30, 11B37, 11B75, 11B83, 11C20, 11E25, 11F03, 11F30, 11F37, 11F72, 11G55, 11H06, 11J83, 11J86, 11J87, 11K31, 11K60, 11K70, 11L03, 11L05, 11L07, 11M06, 11M20, 11M36, 11N05, 11N35, 11N36, 11N45, 11N64, 11P21, 11P70, 11T23, 11T30, 14H55, 15A45, 20F99, 20K01, 20K27, 22B05, 22C05, 22E40, 26-01, 26A15, 26A16, 26A30, 26B05, 28A05, 28A75, 28A78, 28A80, 28C15, 28D05, 30F35, 30H10, 33C65, 33F10, 35B30, 35B35, 35B44, 35B65, 35D30, 35J05, 35J15, 35K59, 35M12, 35P20, 35Q35, 35Q53, 35Q86, 35R01, 35R11, 35R60, 37A05, 37A35, 37A45, 37D40, 40A05, 42A32, 42B25, 42B30, 42B37, 43A46, 47B37, 47B38, 47F05, 49Q05, 52C07, 52C10, 53C21, 58C40, 60C05, 60C99, 60F05, 60H15, 60H17, 62E10, 62H05, 76U05, 76W05, 76X05, 82B05.