amended the data

data/pressure.csv

-temperature,pressure
0,2.00E-04
20,0.0012
40,0.006
60,0.03
80,0.09
100,0.27
120,0.75
140,1.85
160,4.2
180,8.8
200,17.3
220,32.1
240,57
260,96
280,157
300,247
320,376
340,558
360,806
380,1000
400,844
+temperature,pressure
\ No newline at end of file
+0,2.00E-04
+20,0.0012
+40,0.006
+60,0.03
+80,0.09
+100,0.27
+120,0.75
+140,1.85
+160,4.2
+180,8.8
+200,17.3
+220,32.1
+240,57
+260,96
+280,310
+300,247
+320,376
+340,558
+360,806
+380,1000
+400,1340
\ No newline at end of file