FIGURE 1 Cumulative totals for each employee by month (abbreviated)
empidordermonthqtytotalqtyavgqty
---------------------------------
11996-07-01121121121
11996-08-01247368184
11996-09-01255623207
11996-10-01143766191
11996-11-013181084216
...
21996-07-01505050
21996-08-019414472
21996-09-0113728193
21996-10-01248529132
21996-11-01237766153
...