PNG IHDR , sBITO )PLTE @@ @ ` @ ` 0`@@@@ ` ```` ` @`` ` ` ``` @@ @` ```@ ` ` `@ @@` `` @ @ @`` ` @@`p 7 @tEXtSoftware gnuplot version 3.7 patchlevel 2 on FreeBSD 4.10-STABLEM~ IDATx흉*FWcaOfıV>Ua ^!X,bX,bX,bX,oBo;6rtKJ[7d#SomJ!#>epxޘDzM0Z@Owf Y1y >F Ht k$ئkׄ= Sc@-c&af,ֲ@bX,bX,BY0Ye{8Q,/;De_f;}+ٜ