"A Tramp Abroad", By Mark Twain, 1880

 Rank  Occurances  Percentage    1-tuple
       (of 154416)
   1       9593    6.2124391%    the
   2       6183    4.0041187%    and
   3       4617    2.9899751%    a
   4       4552    2.9478810%    of
   5       3797    2.4589421%    to
   6       2768    1.7925604%    in
   7       2560    1.6578593%    it
   8       2455    1.5898612%    i
   9       2051    1.3282302%    was
  10       1841    1.1922340%    that
  11       1527    0.9888872%    he
  12       1516    0.9817635%    is
  13       1231    0.7971972%    with
  14       1213    0.7855404%    but
  15       1122    0.7266086%    for
  16       1088    0.7045902%    we
  17       1065    0.6896954%    had
  18       1041    0.6741529%    his
  19        986    0.6385349%    not
  20        908    0.5880220%    as
  21        871    0.5640607%    at
  22        847    0.5485183%    on
  23        828    0.5362139%    this
  24        826    0.5349187%    one
  25        816    0.5284426%    they
  26        776    0.5025386%    you
  27        756    0.4895866%    were
  28        670    0.4338929%    by
  29        666    0.4313025%    there
  30        664    0.4300073%    all
  31        630    0.4079888%    so
  32        627    0.4060460%    have
  33        625    0.4047508%    which
  34        589    0.3814372%    or
  35        575    0.3723707%    my
  36        570    0.3691327%    be
  37        568    0.3678375%    from
  38        561    0.3633043%    an
  39        531    0.3438763%    up
  40        524    0.3393431%    him
  41        507    0.3283339%    are
  42        485    0.3140866%    no
  43        470    0.3043726%    would
  44        467    0.3024298%    me
  45        463    0.2998394%    when
  46        454    0.2940110%    said
  47        453    0.2933634%    out
  48        423    0.2739353%    them
  49        394    0.2551549%    then
  50        386    0.2499741%    could
  51        386    0.2499741%    about
  52        379    0.2454409%    their
  53        374    0.2422029%    if
  54        366    0.2370221%    her
  55        351    0.2273081%    been
  56        342    0.2214796%    she
  57        341    0.2208320%    down
  58        336    0.2175940%    two
  59        324    0.2098228%    its
  60        320    0.2072324%    what
  61        310    0.2007564%    time
  62        308    0.1994612%    over
  63        295    0.1910424%    these
  64        295    0.1910424%    our
  65        293    0.1897472%    some
  66        276    0.1787380%    into
  67        273    0.1767952%    very
  68        270    0.1748523%    other
  69        270    0.1748523%    do
  70        269    0.1742047%    has
  71        263    0.1703191%    us
  72        258    0.1670811%    who
  73        258    0.1670811%    NUMBER
  74        255    0.1651383%    now
  75        250    0.1619003%    did
  76        249    0.1612527%    any
  77        241    0.1560719%    more
  78        241    0.1560719%    man
  79        240    0.1554243%    way
  80        238    0.1541291%    made
  81        237    0.1534815%    see
  82        232    0.1502435%    will
  83        231    0.1495959%    upon
  84        228    0.1476531%    only
  85        228    0.1476531%    old
  86        226    0.1463579%    little
  87        220    0.1424723%    than
  88        219    0.1418247%    before
  89        218    0.1411771%    good
  90        214    0.1385867%    like
  91        209    0.1353487%    get
  92        208    0.1347011%    after
  93        196    0.1269299%    great
  94        190    0.1230442%    never
  95        190    0.1230442%    got
  96        189    0.1223966%    go
  97        188    0.1217490%    german
  98        187    0.1211014%    well
  99        182    0.1178634%    feet
 100        181    0.1172158%    three