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• description : Usenet posts per month containing the phrase "doom clone", vs "first person shooter"

Based on Google Groups search results.

# year month "doom clone(s)" "first person shooter(s)" 1993 1 0 0 1993 2 0 0 1993 3 0 0 1993 4 0 2 1993 5 0 0 1993 6 0 1 1993 7 0 0 1993 8 0 2 1993 9 1 6 1993 10 0 1 1993 11 0 1 1993 12 4 2 1994 1 6 0 1994 2 12 0 1994 3 41 1 1994 4 34 2 1994 5 49 0 1994 6 53 1 1994 7 62 6 1994 8 46 0 1994 9 145 1 1994 10 58 8 1994 11 92 5 1994 12 213 10 1995 1 187 1 1995 2 86 1 1995 3 233 8 1995 4 201 14 1995 5 223 7 1995 6 148 16 1995 7 217 13 1995 8 210 11 1995 9 159 3 1995 10 96 9 1995 11 199 32 1995 12 229 23 1996 1 337 16 1996 2 386 23 1996 3 227 18 1996 4 210 33 1996 5 257 39 1996 6 432 57 1996 7 380 56 1996 8 408 67 1996 9 325 33 1996 10 309 43 1996 11 222 27 1996 12 237 37 1997 1 201 93 1997 2 201 39 1997 3 297 132 1997 4 265 97 1997 5 137 63 1997 6 173 82 1997 7 214 92 1997 8 167 136 1997 9 282 164 1997 10 167 205 1997 11 158 128 1997 12 187 231 1998 1 216 203 1998 2 96 219 1998 3 147lgdgbnn; vbnn Sz,, "&+*; 235 1998 4 95 231 1998 5 144 282 1998 6 136 354 1998 7 61 176 1998 8 105 393 1998 9 89 337 1998 10 117 659 1998 11 123 559 1998 12 171 660 1999 1 155 637 1999 2 113 369 1999 3 111 516 1999 4 67 662 1999 5 57 634 1999 6 40 548 1999 7 64 549 1999 8 54 629 1999 9 87 449 1999 10 33 460 1999 11 74 561 1999 12 197 617 2000 1 55 706 2000 2 30 862 2000 3 39 850 2000 4 31 671 2000 5 29 653 2000 6 27 659 2000 7 24 729 2000 8 21 467 2000 9 18 357 2000 10 28 576 2000 11 45 636 2000 12 22 457 2001 1 12 609 2001 2 12 524 2001 3 21 548 2001 4 36 443 2001 5 7 524 2001 6 34 607 2001 7 25 453 2001 8 13 471 2001 9 37 361 2001 10 18 463 2001 11 36 721 2001 12 20 826 2002 1 23 723 2002 2 14 666 2002 3 18 628 2002 4 16 729 2002 5 11 892 2002 6 10 798 2002 7 9 941 2002 8 11 792 2002 9 16 711 2002 10 8 890 2002 11 8 1128 2002 12 3 1067 2003 1 9 967 2003 2 2 839 2003 3 7 662 2003 4 6 798 2003 5 12 723 2003 6 1 493 2003 7 11 524 2003 8 3 444 2003 9 10 539 2003 10 9 519 2003 11 7 551 2003 12 10 585 

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