Table 3: The net profit for each process.

Net profit /RMB·a-1	Feed 1	Feed 2	Feed 3	Feed 4
LTP	2,022,736,843	1,897,593,739	1,815,828,068	1,673,592,781
NCP	2,081,770,756	1,907,257,505	1,814,045,718	1,667,667,883
NLP	1,924,085,745	1,811,073,222	1,725,990,225	1,584,162,353
PSP	2,077,195,211	1,913,007,760	1,827,340,573	1,673,341,444