| | 2004 | | | Rank | Principal of industry | Factories | | 1 | Basic agro-industry | 45,856 | | 2 | Fabricated products | 10,746 | | 3 | Transport equipment | 9,121 | | 4 | Other manufacturing industry | 7,136 | | 5 | Food | 6,620 | | 6 | Non-metallic products | 5,958 | | 7 | Machinery | 5,111 | | 8 | Wood & wood products | 4,798 | | 9 | Plastic products | 4,560 | | 10 | Textile | 2,991 | | | Total | 120,145 |
| | | 2005 | | | Rank | Principal of industry | Factories | | 1 | Basic agro-industry | 44,097 | | 2 | Fabricated products | 11,127 | | 3 | Transport equipment | 9,351 | | 4 | Other manufacturing industry | 8,332 | | 5 | Food | 6,899 | | 6 | Non-metallic products | 6,084 | | 7 | Wood & wood products | 5,285 | | 8 | Machinery | 5,124 | | 9 | Plastic products | 4,825 | | 10 | Textile | 3,018 | | | Total | 122,312 |
| | | 2006 | | | Rank | Principal of industry | Factories | | 1 | Basic agro-industry | 44,171 | | 2 | Fabricated products | 11,482 | | 3 | Transport equipment | 9,518 | | 4 | Other manufacturing industry | 9,124 | | 5 | Food | 7,088 | | 6 | Non-metallic products | 6,213 | | 7 | Wood & wood products | 5,673 | | 8 | Machinery | 5,212 | | 9 | Plastic products | 5,032 | | 10 | Textile | 3,042 | | | Total | 125,347 |
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