Counts of pages with <form accept-charset> values, from http://philip.html5.org/data/dotbot-20090424.txt

   2463 UTF-8
   1459 ISO-8859-1
   1235 utf-8
    166 ISO-8859-9
    138 iso-8859-1
     64 ISO-8859-2
     51 windows-1251
     50 iso-8859-2
     17 windows-1252,iso-8859-1
     16 x-euc-jp
     16 utf8
     16 Shift_JIS
     14 iso-8859-9
     12 ISO-8859-1,iso-8859-1,utf-8
      9 ISO-8859-15
      8 UNKNOWN
      8 EUC-JP
      7 tis-620
      7 euc-jp
      6 Windows-1253
      6 windows-1253
      5 windows-1256
      5 utf-8 iso-8859-15 iso-8859-1
      5 gb2312
      4 Windows-1250
      3 Windows-1255
      3 utf-8,*
      3 latin2
      3 ISO-8859-7
      2 windows-1250
      2 shift_jis
      2 GBK
      2 gbk
      2 GB2312
      2 
      1 x-Shift_JIS-jp
      1 Windows-874
      1 windows-1255
      1 TIS-620
      1 sjis
      1 SHIFT_JIS
      1 iso-8859-2, utf-8
      1 ISO-8859-1,UTF-8
      1 ISO-8859-1, ISO-8859-2
      1 euc
      1 Charset