Who is the most constant rider in Tour de France 1964?

Most constant rider

Rider with the smallest difference in best and worst result.

#	Rider	Difference	Best result	Worst result
1	Van Schil Victor	44	6	50
2	Simpson Tom	51	2	53
3	Altig Rudi	52	1	53
4	Adorni Vittorio	53	3	56
5	Pambianco Arnaldo	62	6	68
6	Manzaneque Fernando	63	5	68
7	Sels Ward	64	1	65
8	Poulidor Raymond	67	1	68
9	Geldermans Albertus	69	8	77
10	Foucher André	71	2	73
11	Anquetil Jacques	74	1	75
12	Desmet Gilbert	76	2	78
13	Wright Michael	78	2	80
14	Cazala Robert	78	6	84
15	Stablinski Jean	78	1	79
16	Anglade Henry	79	2	81
17	Mastrotto Raymond	79	7	86
18	de Roo Jo	81	1	82
19	Vermeulen Paul	81	6	87
20	Zimmermann André	81	8	89
21	Epaud Guy	81	2	83
22	Janssen Jan	83	1	84
23	Gabica Francisco	83	1	84
24	Gainche Jean	83	6	89
25	Darrigade André	85	1	86
26	Delberghe Edouard	86	2	88
27	Segu José	87	3	90
28	Mattio Claude	87	8	95
29	Groussard Joseph	89	2	91
30	Zilverberg Huub	89	11	100
31	Hernández Rogelio	90	5	95
32	Uribezubia Juan María	91	1	92
33	Graczyk Jean	92	4	96
34	Jünkermann Hans	94	3	97
35	Groussard Georges	95	2	97
36	Otaño Luis	96	4	100
37	Everaert Pierre	96	8	104
38	Poulot Robert	96	6	102
39	Elorza Sebastián	98	1	99
40	Bahamontes Federico Martín	98	1	99
41	Claes Jean-Baptiste	99	3	102
42	Franchi Antonio	100	9	109
43	Aerenhouts Frans	101	3	104
44	Van Aerde Michel	102	4	106
45	Pauwels Eddy	102	6	108
46	Vyncke Camille	103	11	114
47	Rostollan Louis	103	8	111
48	Hamon François	103	7	110
49	Babini Battista	104	2	106
50	Kunde Karl-Heinz	104	3	107