"The Pickwick Papers", by Charles Dickens

 Rank  Occurances  Percentage    1-tuple
       (of 298167)
   1      18231    6.1143587%    the
   2       9778    3.2793703%    and
   3       8108    2.7192815%    of
   4       7213    2.4191141%    a
   5       6992    2.3449946%    to
   6       4967    1.6658450%    mr
   7       4740    1.5897131%    in
   8       4415    1.4807138%    his
   9       3577    1.1996633%    he
  10       3413    1.1446605%    i
  11       3336    1.1188361%    was
  12       3322    1.1141407%    said
  13       3002    1.0068183%    with
  14       2978    0.9987691%    that
  15       2916    0.9779754%    it
  16       2716    0.9108989%    you
  17       2202    0.7385123%    as
  18       2147    0.7200663%    at
  19       1883    0.6315253%    had
  20       1832    0.6144208%    on
  21       1811    0.6073777%    for
  22       1664    0.5580765%    pickwick
  23       1573    0.5275567%    which
  24       1565    0.5248736%    this
  25       1523    0.5107876%    sir
  26       1359    0.4557848%    my
  27       1349    0.4524310%    him
  28       1348    0.4520956%    is
  29       1332    0.4467295%    by
  30       1260    0.4225820%    be
  31       1252    0.4198989%    have
  32       1219    0.4088313%    very
  33       1216    0.4078251%    not
  34       1152    0.3863607%    sam
  35       1107    0.3712685%    but
  36       1104    0.3702623%    all
  37       1057    0.3544993%    they
  38       1004    0.3367241%    replied
  39        995    0.3337056%    were
  40        980    0.3286749%    from
  41        946    0.3172719%    so
  42        934    0.3132473%    an
  43        922    0.3092227%    no
  44        917    0.3075458%    up
  45        917    0.3075458%    man
  46        897    0.3008381%    old
  47        873    0.2927889%    if
  48        843    0.2827275%    me
  49        826    0.2770260%    who
  50        807    0.2706537%    her
  51        796    0.2669645%    been
  52        780    0.2615984%    there
  53        770    0.2582445%    when
  54        762    0.2555615%    or
  55        750    0.2515369%    into
  56        749    0.2512015%    weller
  57        739    0.2478477%    one
  58        671    0.2250417%    what
  59        665    0.2230294%    out
  60        665    0.2230294%    gentleman
  61        662    0.2220232%    do
  62        647    0.2169925%    little
  63        644    0.2159863%    your
  64        607    0.2035772%    upon
  65        596    0.1998880%    here
  66        593    0.1988818%    are
  67        573    0.1921742%    their
  68        541    0.1814419%    she
  69        534    0.1790943%    would
  70        532    0.1784235%    himself
  71        518    0.1737281%    we
  72        513    0.1720512%    more
  73        506    0.1697036%    time
  74        506    0.1697036%    then
  75        483    0.1619898%    down
  76        478    0.1603128%    them
  77        477    0.1599775%    its
  78        476    0.1596421%    some
  79        473    0.1586359%    well
  80        471    0.1579652%    great
  81        468    0.1569590%    now
  82        461    0.1546113%    winkle
  83        455    0.1525990%    mrs
  84        449    0.1505868%    say
  85        428    0.1435437%    could
  86        426    0.1428730%    other
  87        425    0.1425376%    about
  88        424    0.1422022%    will
  89        409    0.1371715%    dont
  90        408    0.1368361%    than
  91        406    0.1361653%    know
  92        406    0.1361653%    dear
  93        399    0.1338176%    before
  94        397    0.1331469%    after
  95        396    0.1328115%    head
  96        392    0.1314699%    any
  97        383    0.1284515%    two
  98        376    0.1261038%    good
  99        374    0.1254331%    young
 100        365    0.1224146%    see