PNG IHDR Qu7 sBIT|d pHYs a a?i 8tEXtSoftware matplotlib version3.2.2, http://matplotlib.org/ IDATxyxEoϑ}Bo0p%ܢr.*W+",*(r'H [NrgrgzNgz&B}'N j1@!B!R9 B!B:!B!jB!B!:!B!jB!B!:!B!jB!B!:!B!jB!B!:!B!jB!B!:!B!jB!B!:!B!jB!B!:!B!jB!B!:!B!jB!B!:!h͚5GU\?d4jjyqq1}t @ǎbAkx?{1ưaAAApuuE пZJ.==3gDooot+Wd]AJ???>atkhѢmb̙u떳Wc%%%HHH{Z7mgy 6NCpp0w7|S]^ЫW^{U$&&bӦMuVA0` ub=]xq+>w͚55;\Y~=.]N$$$jԨAXnt~%$$@?G|ڵ+6?R4h:Tq***ꫯ"44j;vªUOQFpssCf0i$+natC\\dۤ`hժ<<