|Represents the group by
date (4=4am, 2007=year 2007 depending on the groupByInterval that was input).
GroupByInterval=TimeOfDay (1): 24 points (0-23)
1=AM, 2=2AM ... 23=11PM
GroupByInterval=DayOfWeek (2): 7 points (0-6)
1=Monday ... 6=Saturday
GroupByInterval=Month (3): 12 points (0-11)
0=January, 1=February ... 11=December
GroupByInterval=Year (4): However many years are included in the
Points: The data is always returned ordered by the GroupByDate, regardless of
the start and end dates passed to the API.