Hi Avra! Try double-clicking on the date axis and setting "Uniform axis range for all rows and columns". If that doesn't seem to work, you can also try changing the date breakdown from WEEK to the year-agnostic WEEK_NUMBER by right-clicking the date pill and finding it under the first "More..." dropdown.
Thank you David,
Making a "uniform axis range for all rows and columns" produces the attached. It looks more correct, but while each year contains the entire date range, I want each year to contain only the date range of that year - so, 2014 range would be Jan 1 to 31. Does that make sense? Basically, I like the look of the years broken up into squares, which is why I want the years in addition to just the 'week ending' (which ends up being technically correct, but visually not what I want). Any ideas?
Hmm... if you want the date axes to be evenly spaced for the three years; want the boxes to hide that white space; and want the years included on the date axis, you might be out of luck doing this in one sheet. Panes generated by different keys in a dimension can't be different widths/heights, unfortunately. And you could cut down some of the white space by displaying some kind of a custom field for the week number, but then you'd lose the actual date axis marks.
However, you could probably stitch this together in a dashboard by combining three different sheets (one for each year) into one horizontal container. Or maybe someone else will have a better idea of how to do this than I do.