1st line: variable name
2nd line: units

c: Na CMC concentration
n: refractive index
SE: Standard Error

c	n	SE
wt%	-	-
0	1.3308	2E-4
0.01837	1.3308	2E-4
0.0459	1.331	2E-4
0.0733	1.331	2E-4
0.1834	1.33125	2E-4
0.2383	1.3315	2E-4
0.3669	1.3316	2E-4
0.5499	1.3319	2E-4
0.7329	1.3321	2E-4
0.922	1.3326	2E-4
1.832	1.334	2E-4