Table 2 The numerical results of the energy consumption of China (unit: 10,000 tce).
From: A new grey quadratic polynomial model and its application in the COVID-19 in China
year | values | GM(1,1) | DGM(1,1) | NGM(1,1,k,c) | GVM(1,1) | GMQP(1,1) |
|---|---|---|---|---|---|---|
1999 | 140,568.82 | 140,568.8200 | 140,568.8200 | 140,568.8200 | 140,568.8200 | 140,568.8200 |
2000 | 145,530.86 | 154,097.5428 | 154,173.2782 | 121,587.3934 | 41,622.9108 | 131,646.4473 |
2001 | 150,405.8 | 166,155.7594 | 166,243.3504 | 142,213.0901 | 53,370.7429 | 152,246.2752 |
2002 | 159,430.99 | 179,157.5379 | 179,258.3764 | 162,614.7168 | 68,053.9908 | 172,683.2660 |
2003 | 183,791.82 | 193,176.7127 | 193,292.3359 | 182,794.7080 | 86,162.8285 | 192,937.8565 |
2004 | 213,455.99 | 208,292.8956 | 208,425.0000 | 202,755.4712 | 108,114.8464 | 212,988.1330 |
2005 | 235,996.65 | 224,591.9280 | 224,742.3853 | 222,499.3882 | 134,140.9801 | 232,809.5492 |
2006 | 258,676.3 | 242,166.3685 | 242,337.2425 | 242,028.8146 | 164,126.8251 | 252,374.6097 |
2007 | 280,507.94 | 261,116.0186 | 261,309.5834 | 261,346.0807 | 197,422.6059 | 271,652.5157 |
2008 | 291,448.29 | 281,548.4891 | 281,767.2500 | 280,453.4912 | 232,662.9912 | 290,608.7684 |
2009 | 306,647.15 | 303,579.8116 | 303,826.5269 | 299,353.3259 | 267,672.3260 | 309,204.7243 |
2010 | 324,939.15 | 327,335.0970 | 327,612.8026 | 318,047.8398 | 299,553.1267 | 327,397.0971 |
2011 | 348,001.66 | 352,949.2464 | 353,261.2821 | 336,539.2636 | 325,035.1990 | 345,137.4001 |
2012 | 361,732.01 | 380,567.7169 | 380,917.7554 | 354,829.8034 | 341,075.7973 | 362,371.3216 |
