PNG  IHDRW]sBIT|d pHYs  ~8tEXtSoftwarematplotlib version3.1.1, http://matplotlib.org/f IDATxyxTf2YB@\ QP+?PAZ.XDVE%ֶD]peUԺ{ @s @&3 zs{3sQZkB!B!eB!D$HB(H !Q B!`mRBB@.BCTee%v[v@41ͶqR (6ncK7~c%4M@u&%%auom-͎.F$u%;-Qa5R!" B!D$HB(H !Q B! A*BDAT!B;3ޙi] B!Юg6B{@{lx'$HBD- 7fĩ$']B!D$HB(H !Q B! A*9G B! A*BDAT!BH!DД4B!ڌ. n+(ǒ4t !QBĤ$7ӆ8DN:_R(]lI !-w_lʵL6وz/?DYYY R!q&y5?{/M^5_V+ksH !{Mza够r2Ni4 R!-櫟x_WPx'y M=kA$=c^/H !8T5f}LgLl-ξ8qwH\tIKKc֬YۗbMyw4M >hx֯_ϽKii)iii{/#b/J𓊅F:A~~>3g$''e˖)+++o߾ /P\\\n_,_k;#֧ ;uu\EBj2gu@VV7oF)ENN#Gw}Y&MT?@ee%guBQ52 9Q%v*n]ddd Xx1F"%% O7t@-[н{:dӦM}ѱ; !hgZb~wuyI8Uy4`\rrrѣo}3E>zq8up8x<C)E w>Jv͔-j5Mma4Zm!?p[Z78^mFKԭaF=H'Mĉyw7nK,t<ǃ>Xoغ\.~~OLLZkv1eLY֮ؒ߰PLyI0-s[KKԭiF4nAǮ]:t(J)ƌٳټy3~-;wd„ @$( %%%ylٲ41 P(Ė-[[W!ߺMHQv^sά]`0Hfff4hk֬}ѢEZN:osӽ{wzsB]>tM |XkiK~$H0܆#]bҥ[/ R!87vܫK7At#A*ph!t8ҭ|BQ庢K2mBHnI!-t6Xv6h[!HB{'(xwZ7tR;Bl_x BQk.kإk)s@f@\^;ZB!LF(7ƣK7)IRf2?%ww=4' B2]VtG׻V:ܟ}SVoV>'4|[O[$A*M[{u:cإkBN>^ O u7Igr*>K~c YmFT!#Zkru1銍kTT4!Ð8LpU1~=3^n!% r*8P/$Hq{m]JVkN7_ԹB{p|i%\ Aps7>KV$<-RGBT!Wud#]cݡH?"7Ty75y*>TF;FT!e:_BL [%sr5 O:I}ҁSMm?c44^ >c Xmh˹袋flذb&Og]UUUL6lFc=V-??ɓ'3zh.>xB2BZYD&ppJm4߰yF2s>E>YH5HLȎUB[̜9^{nݺy駹+1b۷o#|/__@_^czJݾ|fV L5:đBE;>Mj+&VSz.-$B_Ox Qc4## B/fԨQBaa~dee\UUźuغu+iii\{{͛1bDOFWzLGqtv~J\Nm%W))tf^k}Tܲi$ౌ!g,OFУGϟߤ}~;#GdYpx89D>sNt\:s&ɣQù3,%$rBhDNWw@{6ľ9j>+H ̅tO.'LŎ^nn_V܃tҤIL8wyqƱdɒFkVWWs7ӹsgf͚@BB~|>_nJ)e 'v͔mya4-Ɓ?h:5/Vr`3ٗ],Sft))g3]e;tK5#QHNG}_0xWay]a,Qc4L,ѭp*'KS$7%>yyyڵCb̘1̞=͛7ӿz BtMӇӧ>޳gOJKK 99ϹqFƎ1(I5S w)K{#u,;Фww6YZ<(RJv Y>_}pYzg%RzL@[Nm~V0NQ:LzJRm=ur|$ti&UIgˡDl0Mh-HKJJ;yܹ3k׮% >>,uBv3l0.\ԩS(--eȐ!> !D B$F'NldUR "ADut*6g +7#TjV7iϳ,U[ m\o͠a)P$.F§VThO(>7H ^&Vs3Go!!1U )ra~ @@1ut'A*h5:LYH~l(Q8Hk( u2/-{͟HpJn֌?qwk8Zpb-b/K=' A:kEB:BsI !ZgYH)aҰkG6e€(J7)^_~JVj2Vjtzơ Ma(k,8ZqʂT'xrT)';96GٟTQnYD- Bgfhz`щ8/,.zj/ϚD͝Pe``DZ5iߴ}7(LAګxWj3$CIm e[1;؏"~ WR NWn&tqRoݏY\ yqU,|=\mslZi"ݳV_XQVwө;9op߀p *fYȏqjtzj2R|  I$ls;I !šı?r]9C:j6#Kf?̓O#,fA1 \ᎲluUt~eAw!"?6 *A3 E4,jd]սOi/)r r?h>Q؟" t?먞1jt;J9ate-]Ƨoq*!зP{BsuX+ߐA!Ruq[40-Fi{!Bϓ V2bL^Y$H1 Q=8~$rdhz~3ZF1&A*:s}owv1ǺWt)eg&ni?&h N1 iq;1(dBkͻWt)u+UzVm~#8̯#)MRpBT[f՘^c KE <  .Љ V"p -aּKy_WU(¸]@HePjFm(.5$H-.Oy܅͉$0&W`q.7ԗtD یڹi M~/?z1C,to`FO,KXkUG(+I\NT(Bj4+HMdŊq9琞NEEݻwU cf~4'zc\noi^^ dDt%?U&'LIO@0^&t)=z V R.қxwĆEa\3-A2w. nQz㵃(Qi\ZA?sUWG7x# -- C=ij>B !ھpJd"7ukE$<>.\JJU)?= ֲղ SPIɯ3GEO|ÏQyA'U^Խ=hcb%\|B g ~;K "jc֭[n / ң>'SOŬB )0pFlE QJkmx;g3o$[:T-š DW|=?c.?ND~\-i431,^Ł1Rx-gm,mT4--wߒm*u&pJrيju~byp{zϙ!$oy.vx,(ߎϒ259HXp!VB)ţ>=C~~>2 !ڨO*b4pJU^HWܧy\!<#dkdS5enDe44T0kպ/y䙫yaNyk8@J%`ETe 뮻駟Xf |  ;Mfm| ˇf%.V)1bwlt?Hh8IW>A.\PP'+ #qF=,`~cr)>$ZW4%%{׳i&N'zW^,(tcVԆT&*Qw^r \pAm~<<92fB>5or(jFRA?=ĨVhl[u&yo+MN`F ӻ࿹v{Hr&^x-62Z"fO<]t.}[oeƌ̟?_Tvn.c@תd;ĥ6:SY}v^̖{f+Uc5aۙq#;tG0ֽ>E+z3 raAi&n6X)„ xbR8!D;X+0UG-w˛렟G>}==b+۱mX6c۱Qi fo|8hÖ1/h[|G\~$$D}noB6Ԛ[7L1:1@ZؖBECN^fR2Gń@LPڋ3 X=GcR] LBF&Ҫdﲰ}m;-x{ڲs=CD߮ƍGSO#4M BWeԚgu UPht№X]t6ωQVM5>JocuPmb75!R35N$TAcG3}{FtA ]FB#BuU&^˙5NTϧ"OhfԤ}i4HW^M^ر#Wo_b˗/'''OZZf͢o߾3m4oλ[@ YXf q1qDrq]wqꩧ6ą3_jB#~ys6IHSMJnQqe&TUݵs=0x-㵞rAu1hN8crW78RN'??3gkѭ[7rss>}:O?4W^y%#F`uY`,]rƎˀ81c#Fk믿fԩ{8^YXkX=8Pjd Ct5]~~L;OrYskYxjo-wܠA1Ҕg/d2guD&7oJ)rrr(,,߯ϲeo~aͲe8#Yr%?8'x"]veʕ1"r q8 k?tjB7F}"D -x-CJ {h ##2G(bŌ5RRR(,,o͛7ӣǞ=z?d֭mB4SHkE5!ڻ!QjjhS2`MƕW^ 撓C=jopt:z=p8x<C)En7mnRYҚʶ KIw4TjX3,NԄoԄ~cJBso~,ZTxBi3ЮHU-LK;Կ9Դga4~ÇrJ&Lz&Mbĉ;7%K4x]3!!_r8DBwnZkvhÖ-f޴mKeiHHk2 YQ$ݷ~5EiIgI >Z ڀ(G%=mm۞Dݚn4L:t`ٲe~۷vv#v_lH^^vbС(3f gf_{Gu6m#`ƍݛ={RZZJEEɵƎ /FG*k.tC@^yMipwkѹsg֮]K0$33}=\yFAqq1˗/駟v3l0.\ԩS(--eȐ!M=! Ԛ'B ۍ z D*rOhrOKwL2ɓ'c&vsj*|A|>EEEdggӹsgrss8q"6m";;M7D~5kwu-v3o5!P!5:QSvMpHvAZ]]}]LdȐ!O#GͰ%p%,E%L8 htCMp+/ `{Ԡ5@ZLz`66999,]p8a|L6-eB`(\Oe ȭ[%,R +_Td n,zR<ХpK7YtJN3lOj8;⤓N?/dĉ[xOi2x դV Ϗ A?83NMl[^oh'r.i#Pxm EEE\p`ZZSPЌĄq3E[_MzMսg۱Bx JQ}Nm+*(9vbf{~$wk 2h6M΄  RB9GRe!ypnsQg'/D f)sv[.'5)'1Rf%;j-kdحI_~?UU!vjpez+!Q@}ûPY=Nx OGv*SI\֚҅ r-=F$a)56M?7 q:@JB U֋) d̃ qjRw}w}+~eԄ 5cZj.+<"Pxè]Ja3 #˯P ӂ%xIhtƦ5(veP%D;Ф պ]mjOo =3Yb'D <{ P"|)T_fα }L=8u1;fdu ]~}]1v at>!&X'Dk-E@wy= *ܙA$`kUP#ѧjOhTΫlYʟKy])y[OǮ'qww@{n@װ߲~ӎH7vGO>/2/o~EO_xw-46*W:UhM#}l"@be֥;]pqͅӨe hx1&Hϱn6N7:/HՅA|C\\` ɫ8«I <\{ Ajl22fsC= ~ !$HPmksO}Ǥg`r X\UO94p:;@AB`kOH <+&.*l)D8 v8 I6`fqZ#qp8HQuGo[GԢȠ! J+tiRuaψ4w&!$`D헔ol׳  TCլ XxAGDZ8:4WPyŗ/vWxi98͵I>r *eNDÌ8lT0k2Aţwk$wfe6oN,S"VMc4 ^ ok(I a~ @XukmעU hhKe; D'RZ..e2Jm߶𱵶$їi@&ojs0 D&R(Bm*D qw7UHk*?~~kn_3\)*ʅS1/nF>鶵h<#T ] qz<T)JhlBf "#O\P5ySGr0/9?qpr1H%67QHķm>{ UbE lw5ܡjWbX=<~ P1Wq@fjR^,`gxϠVy/':1@ҕ9.$h4j2i"1w zόGu UK^C1 Q!bEbVOA@d+g&2ҕ6'OwE: 2Jj+ɏl{&< p5u-"1QxP πq"DI|9iMϛgʮѤV~֕ӝ) ?8DBs 3no`A mSC[ʗqtTݨ^BR/$ iV~˨E \p\m_7BMCB pv_&_ W lB**T[/g Ռ1!A* >mHBWx|8-">B}|KX<%7 u78vCbcOWaҩ^@u,>PgTS) R}=,4K(%dd~?2T{>v:EGM5>EpXpT&+x-#dĭmX\tIKKc֬Yۗ K/a& b̙v {شi/nsRZZJZZ{/+a^%ё<;d*;wػaHzM5 94H>M`{8V5m|V_[ռK`bGqJ,tЃ\+l߰zV{3D(2иلdx!%^S[W.#1\zZ BcsvKlX&;!DE%]#:Ą^撓C=?>wqvvp73aN=T<^{-c8ubt8x<>QJ-GvFnHY]vmpΟnz|6"=G%p}rR=2sPy&|yƆ{4 `k{WO7vZn KJqI&1qDyƍGϞ= ۽^/. =_ה_%Kr3󑘸jZkvT[Er0Í8g=U0_]:bj# Thji0'ynRua  =`}29Dk{WO7vZnMS7q Ҽaڴi(HMMeذa^+-[`&a زeKm]MUC O>AvǺFd.T)8bCEq/8㦤;3]"k]`0ԩSYt)ńB!y?|zŊ+HsʕӇ޽{өS'~m^uwN^u:ޙiIg޶"h.dZW3?jO1, KH7'8la7bi"$H~uպVܚ,=9Õ/n,֮= ! { 5+XٴWx:Q P.+c `K)m!$SA::ܳɸK:r|;TU"'P;MBo/ktw)Z; @${`0@~~>'Of\r%|<!c3sLrrrXlL>/gy^zKR\\s=5kX`*>|̘1#F|rf͚ߎ!@j2gu@VV7ofٲewy$''cǏgҥ,Z+tl6sSN+Wrp'ҵkWV\B!8iFFÆ   xbFŖ-[ѣG233ٴiׯ0aF# c׮] :cƌa(jr6nH޽޽;UUU bгgOJKK 99vcZkvTx=IZ[[2~cK7vZnMS7q-));d׮]]`0ԩSkGB!y?|."^~e*++|deev6l .>!CtB -3e&OivΝ0aZk5jyyy3ȑ#K5kwu-v3o޼:ZBxPZk}RSS1MͺﷶL;zYːؒ-iplO CQVVVv"P!B R!" B!D$HB(H !Q B! A*BDAT!B R!" B!D⾰fvBĐi t !Q B! A*BDůB!***X,B6łtѢE,\~p8 dp r)-RB!D"] ,`|wB!ָ\.| ^{-Z⥄B6Eiu5jnx]SOzjy֮]wߍ7l27R +1 -ؒ[Ev߿?Ǐglذ,jΝ/uPZKHƖolIN}vY`aqFz-[⥚%%%Ԭ~k_>2!CHwaQ]3#3 @*mjVQ\p[MHlOkDyJbM4q+5-"1jf&nPT4..@d? ;̼s=\W^̯|D{u Ȅq!..ӦMP=v؁/b֬Y"BY!tʔ)PT8tJJJХKPTxd;UVV">>;vɓ'spB .CDDTo.Dddq~~>ښ1c|ܹsAÈDDDJF֭/KOFVVf̘z1sL̙3g_|EEE4hs:IDAT <<>DNN'""2Bf[mEEE8~8/_^vuV\xxx~I{ĉ1{lлwoL0'N… )++FMѠ* >-TVӗ+/W>"r[׌]@p!t~bMnݺ5***jl+//V $YʹrNqs+/W^u_׹Y}'[A_RYY 8s 233m63j}|| R*WX ""zt(,,D||<`ӦMXf t:ر#ڵkTQhHNBGzBrr2ك\h4x{{c̘1ԩSx^yHT*$$$`ԩb bݺuprr2i2(B˗/ʕ+;T \"`nʋH#rZ 6~)z뭆EDDԠ˫s)15&B i$""jNRJ-Zŵ.@DD ޽{O_jl""U27߄Z/5UBF[nիWQYY ."U j QF\GJDDT B iNN?)2UZHǎۊ`L>]d(""" jZaʔ)sDDDO>A@@PDDDVAH?3XIII6lˡjSDD .,GsAnPVVp/ 󚈈Zݒ0tP;wÇG@@vڅѣG"CYvcccѶm[Yaaaظq#6mڄW_}/^ℎHTڬYo>tYd(""" tD~Zc߾}"CYԢКMDDd8 ,DDDf>zQXX*H$G"""ZHu:,X>}`„ … *-K,AJJ wnVUUlʼn EDDdҴ4L:ù=zԩS.2UZH jWUU%2Uzqgpp0n݊<#G駟"%%"Cx ""y-xאz{I`ooHFETB ?Ұ~Bprr1~IQS"|>'''L:լ6N:e˖:t|77 $Iƥ]]]`V\"""S -999'gee=RO¶m۷c…شiS=zS8$"zB:o<\tɬ6鉠 Ij*bۛ1`""nB \]]T~uMnn.<==Z-puz,X/_# /{-DdC?&kǼXtРAptt3QVVFScFAii`q0qDtqiӦU(pw%Y 1;&KEBessXrB^D[RQ~wEdd$&L__ U(XhShݺ5***jl+//V5>o|߿+In{|5/QjMwbm yADn b* ;;Yc_} |y&""2B:yd@FF .^(2Uhc"?]vt^9ijI/YBz:)Qc!1g)5EB KBZYY888XP;woW^H6郈g1Q˗ ={cIp]l߾"CY 26H$ EDDdݻ?QHZ-w)S EDDd={l]HzЧ075Quم4::벐QScv!k5#""Bb  ""jN6GNNT*ꫯYt("""ZHϜ9_:$^6pϞ=طo%"&Gh!]z5$IC$ddd !!/Ɩ-[D#""84++ :?A$^cJDDME%I۵Z- PDDDVA舴K.رcڴi]n߾"CY4&&ǏŋklWT?PDDDVAh! @JJ 6oތ˗/;v*)9-Z˖-,RHgΜ GGG 6 #GDHHfY(((@bb"&M!C`ƍy扈BĉAϞ=qM| /$EDDdU*,,ǏԩS(++ZFFFPuRT0 oиo~um4Ǿj}i}lmj駔J \Q#(JZRH_};TTUUҥKrYZN]%"jeeezˣGp ;v _}!ItѣG U/?DRHwލcǎo^$IС"""0zhx{{CDDduP1j($I Ad2wi>}0j( <-[d[J`kdlDw xzz`1Cbb" 8;;[KMܹsѶm[Z+MΝ;={"((NNNBp…DsIIIpww @#GaԨQP/аTTTo߾ppp@RRXL /Ν;c6^EEE$ }Ń?Oƞ={׍7%jx෿-j5`xhׂZj///~:Μ9{{{xzzBP]mk.ܿ=bcc1x`ʕ+y&zR4 q9c۷ڵõkאٳg=o}:t(֯_4dffO>;w.9/":u {bشi:w֭[Cףcǎӧ9K.ŝ;w쌑#GbXD:Wbƌn|7  ''{^GLL kc sŋ1rH~P5 x7ӧc5[hIPRRb7.֭~;lٲŸ-00øqjRTVoݺ5t:ۨ,X7oDxx8J%mۆ<khjHII5k0b~7X HH^^a1+/W>mCfR(3gys0n8W70tP899Yˍ +/W>m3b^rrwޕ"##۷oKT}EVV4m4)))<^l_y1an'5ݻwqa舣Gj6 'W^̯|A ** :ׯӑblm۶EAAz=5+/W>mYϠ W^͛?ذaP(dl޼wjx̯_0'C||<Ο?{{{ܹ3 |w+t:t:A'W^̯|[8"};w`3fСCׯq]~~>RRR(Syޣ~_y1an1HC 0p@̟?jGŅ k.hZ۷$!44W'/W^̯|[z 2CNcL<* &M€ IN<aذaA1+/W>-u8$}bѳc~ʇmxhnnnӧ͛6mڠk׮5צy_y1an7Ro߾={6ڵk`ʋs|q3BV8]&̯_0 )xAXHBJDDdR"""3 ,DDDf`!%""2Z OCIENDB`