# Aggregations: Year over Year, Week over Week **URL:** \ **Category:** Elasticsearch\ **Created:** [September 15, 2014, 9:33pm UTC](https://discuss.elastic.co/t/aggregations-year-over-year-week-over-week/19800 "2014-09-15T21:33:06Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![nascosto](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nascosto/32/1284_2.png) [@nascosto](https://discuss.elastic.co/u/nascosto)\ **Post date:** [September 15, 2014, 9:33pm UTC](https://discuss.elastic.co/t/aggregations-year-over-year-week-over-week/19800/1 "2014-09-15T21:33:06Z")
Assuming I have a date field on a document, I know using the date\_histogram aggregation I can get a document count by day, month, year, etc. What I want to do is get the average document count for January, February, March, etc. over several given years. The same goes for Monday, Tuesday, Wednesday, etc. over several given weeks. Is there a way to do this having just that same date field or what is the best way to accomplish this with Elasticsearch? -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/027a9e40-d307-4caa-8482-4830108ad353%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/027a9e40-d307-4caa-8482-4830108ad353%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 1:02am UTC](https://discuss.elastic.co/t/aggregations-year-over-year-week-over-week/19800/2 "2017-07-06T01:02:08Z")