On the statistics page (e.g. https://hashtags.wmflabs.org/graph/?query=test), we hard-coded the data buckets for the edits over time graph see (https://github.com/WikipediaLibrary/hashtags/blob/master/hashtagsv2/graphs/views.py#L57). If the search results data spans less than 90 days, we break it down by day; if between 90 days and 3 years we break it down by month; and for more than 3 years we break it down per-year. This might be frustrating for users who want per-month data for 3.5 years worth of data, or per-day data for 100 days worth of data, for example.

Instead of hard-coding this data granularity, we should provide users with the option to switch between per-day/month/year buckets on this graph.

• Add radial buttons or a drop-down for Daily/Monthly/Yearly next to the 'Edits over time' graph
• Use the existing logic to determine the default option
• If users click a different time option, change the displayed data to correspond to that data granularity
• Also modify the CSV download for this graph to correspond to this granularity so that data download matches the visible graph
• Add any relevant tests