PNG IHDR _w sBIT|d pHYs &? 8tEXtSoftware matplotlib version3.1.1, http://matplotlib.org/f IDATxwTWg- DFQ#*vcƂ({I,K-FMl`"b{T, 6v@D)r?nve]@@wdn;m ! n `""""""H/0 &"""""" `""""""H/0 &"""""" `""""""H/0 &"""""" `""""""H/0 &"""""" `""""""H/0 &"""""" `""""""H/0 &"""""" `""""""H/0 &"""""" `""""""H/0 &"""""" `""""""H/0 &"""""" `=(fZj*ЦLxRwq> ,mL4I