help-line	no help-line	ln(h-l)	ln(no h-l)
1.82	1.07	0.599	0.068
0.01	0.47	-4.605	-0.755
0.57	1.65	-0.562	0.501
0.01	0.19	-4.605	-1.661
0.4	0.65	-0.916	-0.431
0.79	0.83	-0.236	-0.186
0.4	0.48	-0.916	-0.734
0.06	0.83	-2.813	-0.186
2.09	1.46	0.737	0.378
1.84	1.33	0.61	0.285
0.12	0.1	-2.12	-2.303
0.61	0.48	-0.494	-0.734
0.02	0.25	-3.912	-1.386
0.02	0.13	-3.912	-2.04
0.46	0.84	-0.777	-0.174
0.99	0.87	-0.01	-0.139
0.08	0.5	-2.526	-0.693
0.23	0.85	-1.47	-0.163
0.1	0.14	-2.303	-1.966
0.05	0.37	-2.996	-0.994
0.06	0.8	-2.813	-0.223
1.66	1.07	0.507	0.068
0.22	1.14	-1.514	0.131
0.31	0.29	-1.171	-1.238