A graph where the horizontal axis is labeled "Stress (100mm VAS)" and numbered 0, 20, 40, 60, 80, 100 and the vertical axis is labeled "Frequency" and numbered 0, 10, 20, 30, 40.

There are vertical bars with bases and heights as follows: 10 to 20, 1, 20 to 30, 4, 30 to 40, 19, 40 to 50, 32, 50 to 60, 18, 60 to 70, 34, 70 to 80, 38, 80 to 90, 36 and 90 to 100, 18.

The letters "Q1" appear below the graph with a line pointing upwards to stress = 48 milimetres. The word "Median" appears below the graph with a line pointing upwards to stress = 66 milimetres. The letters "Q3" appear below the graph with a line pointing upwards to stress = 81 milimetres.

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Last updated: 9 October, 2006.