Particular year	Annual per capita energy consumption (kg standard coal) $x_{1}$	GDP per capita (yuan) $x_{2}$	Fixed asset investment price index $x_{3}$	Graduation number (10,000 people) $y_{1}$	Number of Employed Persons (10,000 people) $y_{2}$
2000	132	7942	101.1	88,910	72,058
2001	136	8717	100.4	89,849	72,797
2002	146	9506	100.2	90,302	73,280
2003	166	10,666	102.2	90,976	73,736
2004	191	12,487	105.6	92,184	74,264
2005	211	14,368	101.6	94,197	74,647
2006	230	16,738	101.5	95,068	74,378
2007	250	20,494	103.9	95,833	75,321
2008	254	24,100	108.9	96,680	75,564
2009	264	26,180	97.6	97,484	75,828
2010	273	30,808	103.6	99,938	76,105
2011	294	36,302	106.6	100,283	76,420
2012	313	39,874	101.1	100,403	76,704
2013	335	43,684	100.3	100,582	76,977
2014	346.1	47,005	100.5	100,469	77,253
2015	365.4	50,028	98.2	100,361	77,451
2016	393.2	53,680	99.4	100,260	77,603
2017	415.6	59,201	105.8	99,829	77,640
2018	439.9	64,644	105.4	99,357	77,856