Worldwide iTunes Chart Methodology

Each country has the same weight. Maximum points per country = 1000.

Formula used: exp(-0.02 * (pos-1)) * 1000

In numbers:

Pos	Points
1	1000.0
2	980.2
3	960.8
4	941.8
5	923.1
6	904.8
7	886.9
8	869.4
9	852.1
10	835.3
11	818.7
12	802.5
13	786.6
14	771.1
15	755.8
16	740.8
17	726.1
18	711.8
19	697.7
20	683.9
21	670.3
22	657.0
23	644.0
24	631.3
25	618.8
26	606.5
27	594.5
28	582.7
29	571.2
30	559.9
31	548.8
32	537.9
33	527.3
34	516.9
35	506.6
36	496.6
37	486.8
38	477.1
39	467.7
40	458.4
41	449.3
42	440.4
43	431.7
44	423.2
45	414.8
46	406.6
47	398.5
48	390.6
49	382.9
50	375.3
51	367.9
52	360.6
53	353.5
54	346.5
55	339.6
56	332.9
57	326.3
58	319.8
59	313.5
60	307.3
61	301.2
62	295.2
63	289.4
64	283.7
65	278.0
66	272.5
67	267.1
68	261.8
69	256.7
70	251.6
71	246.6
72	241.7
73	236.9
74	232.2
75	227.6
76	223.1
77	218.7
78	214.4
79	210.1
80	206.0
81	201.9
82	197.9
83	194.0
84	190.1
85	186.4
86	182.7
87	179.1
88	175.5
89	172.0
90	168.6
91	165.3
92	162.0
93	158.8
94	155.7
95	152.6
96	149.6
97	146.6
98	143.7
99	140.9
100	138.1
101	135.3
102	132.7
103	130.0
104	127.5
105	124.9
106	122.5
107	120.0
108	117.7
109	115.3
110	113.0
111	110.8
112	108.6
113	106.5
114	104.4
115	102.3
116	100.3
117	98.3
118	96.3
119	94.4
120	92.6
121	90.7
122	88.9
123	87.2
124	85.4
125	83.7
126	82.1
127	80.5
128	78.9
129	77.3
130	75.8
131	74.3
132	72.8
133	71.4
134	69.9
135	68.6
136	67.2
137	65.9
138	64.6
139	63.3
140	62.0
141	60.8
142	59.6
143	58.4
144	57.3
145	56.1
146	55.0
147	53.9
148	52.9
149	51.8
150	50.8
151	49.8
152	48.8
153	47.8
154	46.9
155	46.0
156	45.0
157	44.2
158	43.3
159	42.4
160	41.6
161	40.8
162	40.0
163	39.2
164	38.4
165	37.6
166	36.9
167	36.2
168	35.4
169	34.7
170	34.0
171	33.4
172	32.7
173	32.1
174	31.4
175	30.8
176	30.2
177	29.6
178	29.0
179	28.4
180	27.9
181	27.3
182	26.8
183	26.3
184	25.7
185	25.2
186	24.7
187	24.2
188	23.8
189	23.3
190	22.8
191	22.4
192	21.9
193	21.5
194	21.1
195	20.7
196	20.2
197	19.8
198	19.4
199	19.1
200	18.7
201	18.3
202	18.0
203	17.6
204	17.2
205	16.9
206	16.6
207	16.2
208	15.9
209	15.6
210	15.3
211	15.0
212	14.7
213	14.4
214	14.1
215	13.8
216	13.6
217	13.3
218	13.0
219	12.8
220	12.5
221	12.3
222	12.0
223	11.8
224	11.6
225	11.3
226	11.1
227	10.9
228	10.7
229	10.5
230	10.3
231	10.1
232	9.9
233	9.7
234	9.5
235	9.3
236	9.1
237	8.9
238	8.7
239	8.6
240	8.4
241	8.2
242	8.1
243	7.9
244	7.8
245	7.6
246	7.4
247	7.3
248	7.2
249	7.0
250	6.9
251	6.7
252	6.6
253	6.5
254	6.3
255	6.2
256	6.1
257	6.0
258	5.9
259	5.7
260	5.6
261	5.5
262	5.4
263	5.3
264	5.2
265	5.1
266	5.0
267	4.9
268	4.8
269	4.7
270	4.6
271	4.5
272	4.4
273	4.3
274	4.3
275	4.2
276	4.1
277	4.0
278	3.9
279	3.8
280	3.8
281	3.7
282	3.6
283	3.6
284	3.5
285	3.4
286	3.3
287	3.3
288	3.2
289	3.2
290	3.1
291	3.0
292	3.0
293	2.9
294	2.9
295	2.8
296	2.7
297	2.7
298	2.6
299	2.6
300	2.5
301	2.5
302	2.4
303	2.4
304	2.3
305	2.3
306	2.2
307	2.2
308	2.2
309	2.1
310	2.1
311	2.0
312	2.0
313	1.9
314	1.9
315	1.9
316	1.8
317	1.8
318	1.8
319	1.7
320	1.7
321	1.7
322	1.6
323	1.6
324	1.6
325	1.5
326	1.5
327	1.5
328	1.4
329	1.4
330	1.4
331	1.4
332	1.3
333	1.3
334	1.3
335	1.3
336	1.2
337	1.2
338	1.2
339	1.2
340	1.1
341	1.1
342	1.1
343	1.1
344	1.0
345	1.0
346	1.0
347	1.0
348	1.0
349	0.9
350	0.9
351	0.9
352	0.9
353	0.9
354	0.9
355	0.8
356	0.8
357	0.8
358	0.8
359	0.8
360	0.8
361	0.7
362	0.7
363	0.7
364	0.7
365	0.7
366	0.7
367	0.7
368	0.6
369	0.6
370	0.6
371	0.6
372	0.6
373	0.6
374	0.6
375	0.6
376	0.6
377	0.5
378	0.5
379	0.5
380	0.5
381	0.5
382	0.5
383	0.5
384	0.5
385	0.5
386	0.5
387	0.4
388	0.4
389	0.4
390	0.4
391	0.4
392	0.4
393	0.4
394	0.4
395	0.4
396	0.4
397	0.4
398	0.4
399	0.3
400	0.3
401	0.3
402	0.3
403	0.3
404	0.3
405	0.3
406	0.3
407	0.3
408	0.3
409	0.3
410	0.3
411	0.3
412	0.3
413	0.3
414	0.3
415	0.3
416	0.2
417	0.2
418	0.2
419	0.2
420	0.2
421	0.2
422	0.2
423	0.2
424	0.2
425	0.2
426	0.2
427	0.2
428	0.2
429	0.2
430	0.2
431	0.2
432	0.2
433	0.2
434	0.2
435	0.2
436	0.2
437	0.2
438	0.2
439	0.2
440	0.2
441	0.2
442	0.1
443	0.1
444	0.1
445	0.1
446	0.1
447	0.1
448	0.1
449	0.1
450	0.1
451	0.1
452	0.1
453	0.1
454	0.1
455	0.1
456	0.1
457	0.1
458	0.1
459	0.1
460	0.1
461	0.1
462	0.1
463	0.1
464	0.1
465	0.1
466	0.1
467	0.1
468	0.1
469	0.1
470	0.1
471	0.1
472	0.1
473	0.1
474	0.1
475	0.1
476	0.1
477	0.1
478	0.1
479	0.1
480	0.1
481	0.1
482	0.1
483	0.1
484	0.1
485	0.1
486	0.1
487	0.1
488	0.1
489	0.1
490	0.1
491	0.1
492	0.1
493	0.1
494	0.1
495	0.1
496	0.1
497	0.0
498	0.0
499	0.0
500	0.0