DSET ^wbt.stddev.dat TITLE NCDC LIMITS UNDEF -9.99E+08 OPTIONS LITTLE_ENDIAN XDEF 72 LINEAR 2.5 5 YDEF 36 LINEAR -87.5 5 ZDEF 1 LEVELS 0 TDEF 12 LINEAR 0Z1JAN1 1MO VARS 1 wbt 1 99 stddev ENDVARS