PNG  IHDR5] pHYs N Nw#tIME9+z"tEXtCreation Time03-Aug-2006 12:57:44RT$tEXtSoftwareMATLAB, The Mathworks, Inc.R IDATxے(];^qHDj A"~B![]B!$B"'B!P! B}"B"'B!P! B}"B"'B!P! B}"B"'B!P! B}"B"'B!P! B}"B"'B!P! B}"B"'B!P! B}"B"'B!P! B}"B"'Bf|*$|2) !E?bN)Cʊ)BNOИ$eN/BA! LrN}> ^"8A{8;I`?"sbDC}"D %QB>c_BD B}"*[FUB!0"[z;'#gOON">-D#?TUBOB0aDB$@Cg0"[RB!Bޡp~8#Ҥ#[(Nd>Ba:E&(F'2cCK< rӟ&鄬!Y`L?9~w#9DT0IlUlk8Y@\ANS"2PH'2sZ#wY"2 H/qnB԰OĄ=ȭ"R`q3TA834[u"1A8i@ɳdR3VjNP*p~-0"R0SkL;G#F#F^؄KH&0"E,iau-/!CEXJ_?ؤ\Mٞqi8Yi/, a` }V+l![Otl>7ut#Y 9|Ut낉+ԧhfb7VvD V; N-LJ{|pJG(4rGZ?cρnG[yI`T LхTiw}wl̜;MCHP1-%o$')fn 'D7i[Z#Z?.ҨNC:`6i #>2(܃6 ' !xM)4ɜsl+z?m|ws*LD6W9u} i{䙷븗XQ| !0R|dT{ϐbOg$_ uPЍQqPg='b_*e2ZܺrG7uX}lZfa÷ʪ I('-=zz=m*l?|>e-+)P=y!4/O6{TctAp-xL%|}:6Ge޵bĞ].nWZ?kM~V&=B$s㟥K-< A'7 oIz~Ro_cÊ`ݗZ.y:,L1LX썊0b)J!KxD ̟qVS&N֣G.U@A3}u1-?^q=.ZT_mNnj6>}M.zgS1"&r^\{z|ڴH&9eI}7DwകĮ^.h^>58*Nzad}ֽ륐ùP ^C]cAr}?9 #ӢaxF}ٕ =;A5U8Ч8]gxY *Rq9M.O}9Kie^rT;^K@ק9)|&NUrȾ,M+$fv^k$_쥱qެx ܿJs}P,7MF"~OvctF VwK6oNTk>Iז4޹iCz'sZf]Ymҧ$v:ug's^Ypty;K4{?$ '`% 4@-O~WPrܾX-m۽RV.3?Z_ߓ}}-@g5|4HhXď~!upv>NNبpfwuAC}2..iNk'QtSE0 \k>*Z$zl|wßt?5MZv-x%Cvglt>T;JnRiO`D ~E/ޯ*ݥ}ܭV<.]Ł۴ J\b5"{Ǵ'xzjy7EI+W3Z3K&է]̿K*w܎.F$:xG xHh3<>Ԛiojz]eQT+l0M&5>V/`Z8uȃ5Z:bu_d U).vq=w!K'wqq*MpJʹD#4ŅJO~k u4}m+%gǨ - Gy ]U!mŏAKnIo{f5bkBwz!pSJv襢5U*񸝅wqj7"?F(k?t3㰗u8͇Mqq _Tz~#xR|`|B^TC>XbEXW_GT#χr/gz3W o Gko}Vek,yh2\-,_2ufnʕKͩAGJPQr}Tv`EI;I k<́f+; ֽ_FpaNfvp%o~1LZ–lLXcEIqYh!Nէ\fo-~,8I'#RSe$$W|-` B;n,R&,ISΤ!K3iOcϿj(VPy>aVN#/qx,yXҥLT5AyɭɰӵeK.8y%`PS2ܺ*yPsr&(3/M}|GxMB`ɩHOoM#3e֑3}_zHKuz;´x!ix*Atq2 w.oB)^j>w-yUI)R]/WPq}8s =MrӖ(V%]_g!I\tK޿#B}2Ma]!8;wRYDTZNhA}2d,_Av޲qt"vb򴩤L,yI]*4 TwO ׷].#tRӑÖKqH4 TwOCvb,"˰JY?%Yj:ަ//ů[c8%X4|h-u]1(c{fs2Iié ԧ6:DX|¨3]"*Sp)o<,>$Lq塉X[=aIľpx ,ON\ V@קO 0F4L5Z}>{"lK;|By-YbbQ)]߶)T]pƑٜXu.7h}:9g*ɺ Eg,E U ґB~s~iҳM&Rr''@gաǟZxB|{ޓ6. 'dtOB&ŮKb$z]ҴӖ7WuٙfB8:+0aڊVHWӻOlOw9!$t>pm6}B<B&q>kN1LC*xrmQK61 K徒݀ΟEvT4ud|2ƜpDJ(>QI.hDC@}r\Qθ YŒD}2g$&"C w(ǡ8l]H&0pRyD @<ϰOX\s>dQBZNL÷9ʁziDXۣE>_taJWɧ:'s-)ne >niTI$d[$q:߈xx?HCo/yU= N馒9 [mW6+w?4zP@ {(]$ٗ`=FzB}2!a}l[Bz~%HOO hF=b_羥=sKx^SXxX I2&cGo(noCS%+b>)PiQZ yKEL$TZzҙV.9P MP@:q qauփdsD =C=ئ>(mVvfu&C\XT uY֢rS}XRVD_ ziV'KY';@TIZ wsA.']7R|\0ֲZx}.uR_yq|*S8JԻ '0df@Fʸx,;v%DB\vAQL)U f6eC< =4fla~C0ק״ W[b[]%ׯ~)A/T6$O6y#T˕?% ҽw-* lGUɌt'y|WYONl$uOCh$uH?&$ yGq ,D- k1՚q:~v@4:+m| ݽ}cKsմN-6)YhzdOPP~M8 Clm[CpTYE@1js~q҃a(BJ>?ܫvPeGv (Oj,%-T,c28SkmW5p 75.Bf Qdwq1ceSp2yKBሐGw9IoIV&Ok +}]1Jp5 Qp@PޞjI>šfOu&Ox>+m~4=n:UEA%b+-}'')\ pP4߃.NZގZwV]/gOBrl}T[k֧ XY>{ڮ';lӓ9--qOjQc#&A̛lf{BtwP' & MxVZp|S2<LB)l~|T~^_xК6H$hԔ6]&~iHw@B@00Jʔ…[v#tMwt TJmڡV OoU$FT_٤z?Mg\Bԁ֧AV|ߍ`%JUl]W>*0^ʎw2!&}h zZeP5&u:Y wz~.-eןH!ofJ __6K>;~lнt~O|{ h4X[nN`(D%:q?*O*\_\5*m~{.=m|ۧ^GlH/M_I|$ւb磡q~ϖ%(dgf{XfT;'ҟwq"IU;$c \44ڍ^dlv.`.k>>uw &_Du|ۯ#6V, 1 QǘJz[qKCw0w\{+s5/03q?1+M {Niems`k^ϛ"9"|q:?aoϊ:[r^_6=AKZ&rKjC~8IDATvO,aN +4Nj7QLՊ[JeUr$E8)Y3e8gQ Vh0ȟd>)Yi*\T&{K*mf/?xV,3P)o'XqQ_tRD6قZa4J=u@K,9ԟ:};ӰݖEJeo w: &0c n4B 0ȢX-g#Zn}iԋ3U6* RKXUf]l]& Oڙ;L2"{>[ޭҥ&ɽ&]`a`^#WTuir <4I|ࢂOp=!4xtB4'\uNk42}K#UakD}Zw4%RY`߆u?'0 ܃{1E,Ezd.&7oHlÍzO&M6=_k:pBxdIJu%}h>fovh[T꯲ٻc9dfmıYdIEa/̟:s$?A7yuw^_8f8>^B\x5cϋnW6v8?!V8=ȾznlTDC>j4U?H`p0h:|C80:5ݪLIٌ4LKvYt| Qt~tX9}%L*=Oil iIACϟvqbrآ3"o>WI|H #9 rϥi<gx -W@::hQڄƒX>s$яjoȺxEUsz/tb8$_1tay1)zQ9(9"mJgc@&wش g!:wiG?^|Rzw"4w29b7JH!_.$XwY9a:)XV\"vTE|=J4}rBδ0ys7l(*7.>Us,X"%B3*Z¿%4J*ijȂ9ƮDȑ,%+H+a?eɩ1yxU!umV37q)=1>ONY?\U1tFWd'M$[jZVnPU?0PUM[j#d!PU0*U'.*4 (Qb5ږ;&W=H>sEEPzPev%Tv|kK](=BO݄J1S[5qD]xd~V/S:1b Є MOw9X{CH}5jCN~C0ayfJOq|8CK dpECRG2%5:#'ť>Y:ѠKkdw?? 3cZRt':^Ln{:Aj2U;:WQZ )kR=omA>țp`t' Svt gC4^;(b){6QwV[؝>1GN(T*8{&ͪ@*|݆h͕ۈeUn]N̒꽏A\8A\8-N+ipCgŵ`y1jz_bO/+i~/dꔺSX?CG@ځNR |nDrl$[ĶOU)72Mw< l8.q7R|߫]l/њRooeQ8^uWe9 X3 L FH7Aounzv8]8bFx2>D.,.gt:hi=-Uo,ٕV.zp.*זgy;908V0yWňP0zV1g/ddC?L0y0\;84 2^z(r0/U f@V٩OʨkM[O-lel Xe&5ғz)):Bd-qV%y8.V0'*Bcמq R]-z+b" zl ۯ"l p`E/%|@YYl~s[i CGazѕt쩻:6i] >XԜ93¸BuYeXҥ1GQ#hBhrl?{}t)P~4ib)3T#ݵxP هPݴ' ]P@Yy9ʁc^S9S4V-e/7\ɼh0hrN3!)|7Ο NaED?]40 @K^fNPLJcxݓcԻqyƿ#Jedޏ_ReP-Cey fHa` `b$W`ǣs~gT]s@ FEnGzj^FѸ1rx dZ#P96[ Z#=uT̷k>f`=_yW$~;.Ҍ"B}E00d $0'Fy&AsЂa¶7Ѳ_ O ~;CY"}P9~ӖJH܍TZOdd;J7&h4G0mXO1 P*H 4ka;OӞE⢐'%27ʼdQqa&c‘iu{~"q DK^ޛ[3MO |:АQQ Iq#NU=>du@ iO_D[R&;s:%_\PH4أIO$,Yɜan~F? ,caWwi#˘|X@~MOllGEXBJPȾ[qTTBơ>V-`AD?f3/ P k;ĵ~Kj1F4A}"+).m&!/di \P8<[< Picdo,e8L:3)KS<=FB}"D>BD.'B4i:RO(M?2'BmB:>BAVB'BpK! >gΩޔ@BJP3Ab B*peP~s9!YOaK(Qܡ>H0(B>Rq3R̓p9!%OBrB3/T|H\C}"x}uĀD!!4:?IsQ*'BKN:. 1D A=>BADAID{B}"jsOh*)`԰P!nH3rDthDP<Sz})<Ń'$ R_vj>q GDc<{<]2!p~Hδd?hqOk)!i1G!FP! B}"mwB>=J!RzFQ Dʎ n B"'D#B"̟! B}"B"'B!P! B}"B"QKIENDB`