请问以单位播种面积产值为自变量，以后面三个参数为因变量，如何进行回归建模呀？求大神指点！！！！跪求！！！！！

单位播种面积产值（万元/公顷）	单位播种面积用电量（万千瓦时/公顷）	单位播种面积施肥量（吨/公顷）	单位播种面积农药使用量（千克/公顷）
4.108689885	0.429443317	1.28723803	14.42945071
5.399079052	0.445411553	1.423421331	5.457205302
4.002195957	0.50587084	1.11343337	9.145830428
5.667182207	1.728603343	1.161493733	20.12358928
4.849504813	0.795975157	1.668741539	12.18905871
3.236265971	0.167316923	1.307918296	22.1503694
7.263943653	1.771521653	2.076930006	41.72283183
4.508093955	0.581215394	1.345215938	14.08109306
4.84448639	0.159498491	1.177424788	15.52832714
4.265740614	0.172201249	1.097908159	11.57583252
4.061445708	0.674623983	1.586568253	35.34430264
4.021632815	0.402548788	1.399132659	26.42190815
6.597586119	0.887952139	1.434452244	14.9651354
3.604766166	0.295989334	1.3130541	14.67634344
3.097760526	0.109410122	1.168615064	11.77596346
3.850284737	0.140061861	1.164174963	9.411852181
3.530204606	0.174409646	1.101636486	13.32115853
2.092980762	0.316491758	1.132655013	8.434298696