X1	 X2 	X3  	X4 	Y                                                            
5.5 	31 	10 	8  	79.3                                                              
2.5 	55  	8  	6 	200.1                                                              
8.0 	67 	12  	9 	163.2                                                              
3.0 	50  	7 	16 	200.1                                                              
3.0 	38  	8 	15 	146.0                                                              
2.9 	71 	12 	17 	177.7                                                              
8.0 	30 	12  	8  	30.9                                                              
9.0 	56  	5 	10 	291.9                                                              
4.0 	42  	8  	4 	160.0                                                              
6.5 	73  	5 	16 	339.4                                                              
5.5 	60 	11  	7 	159.6                                                              
5.0 	44 	12 	12  	86.3                                                              
6.0 	50  	6  	6 	237.5                                                              
5.0 	39 	10  	4 	107.2                                                              
3.5 	55 	10  	4 	155.0