Sugar Solution (%) (+/- 0.5%)	x (cm) (+/- 0.5 cm)	l (cm) (+/- 0.5 cm)	tan¯¹  (x/l)	n (index of refraction) (+/- 0.005)
0	36.5	74.9	25.98073445	1.364132635
5	36.9	74.9	26.22747952	1.365089533
10	37.1	75.6	26.1390681	1.366153294
20	39.4	75.9	27.43401049	1.382580919
30	42.2	76.5	28.88262173	1.40074868
40	44.1	76.8	29.8652504	1.412945103
50	48.6	77.2	32.19179689	1.441406425
60	52.5	76.8	34.3562675	1.46735675
70	55.6	77.2	35.76170707	1.48391843
80	56.5	78	35.91803043	1.485747874