Graph description: question on seasonal prescribing data

This is a graph in the form of vertical rectangles on a horizontal axis. The horizontal axis represents calendar time from June 1983 to May 1987. Time is three month segments, Jun-Aug 1983, Sep-Nov 1983, etc. The vertical axis is items dispensed (times 100,000) and is graduated in tens from 90 to 150.

The bars represent the number of prescriptions as follows:
97
114
127
124
96
112
135
128
102
121
139
119
102
115
138
117

The bars are shaded in three shades: light, white, dark, light, white, dark, repeated accross the graph.

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Last updated: 30 June, 2005.