ID	X1	Y1	X2	Y2
1	158.2	157.8	140.4	153.2
2	214.9	146.6	211.9	157.4
3	153.2	147.5	152.4	149.6
4	196	153.1	124.7	154.9
5	88.5	143.7	103.9	145.2
6	55.5	132.3	128.5	141.7
7	86.4	144.3	187.1	159.7
8	223.6	169.1	168.5	145.3
9	256.9	160.9	138.3	151.7
10	252.4	157.1	137.9	141.7
11	20.9	141.6	203.3	153.3
12	92.9	145.4	102.5	145.8
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The data were taken from The Handbook of Statistical Practice by Gerard E. Dallal