Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Sum | Mongolian | Population\n(2005) | Population\n(2008) | Population\n(2009) | Area\nkm² | Density\n/km² | Sum centre\npopulation |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Battsengel | Батцэнгэл | 3,818 | 3,855 | 3,846 | 3,500 | 1.10 | 1,096 |
| Bulgan | Булган | 2,285 | 2,361 | 2,434 | 3,100 | 0.79 | 961 |
| Chuluut | Чулуут | 3,943 | 3,749 | 3,744 | 3,900 | 0.96 | 935 |
| Erdenebulgan* | Эрдэнэбулган | 17,790 | 18,022 | 17,770 | 536 | 33.15 | 17,770 |
| Erdenemandal | Эрдэнэмандал | 6,099 | 5,843 | 5,933 | 3,400 | 1.74 | 1,091 |
| Ikh-Tamir | Их тамир | 5,714 | 5,154 | 5,247 | 4,800 | 1.09 | 1,050 |
| Jargalant | Жаргалант | 4,089 | 4,114 | 4,111 | 3,832 | 1.07 | 1,035 |
| Khairkhan | Хайрхан | 3,756 | 3,558 | 3,656 | 2,500 | 1.46 | 739 |
| Khangai | Хангай | 3,054 | 2,805 | 2,926 | 4,400 | 0.66 | 795 |
| Khashaat | Хашаат | 3,594 | 3,305 | 3,344 | 2,600 | 1.29 | 802 |
| Khotont | Хотонт | 4,763 | 4,809 | 4,440 | 2,200 | 2.02 | 774 |
| Ögii nuur | Өгий нуур | 3,015 | 3,041 | 3,086 | n.a | n.a. | 622 |
| Ölziit | Өлзийт | 3,154 | 3,037 | 3,102 | 1,700 | 1.82 | 829 |
| Öndör-Ulaan | Өндөр-Улаан | 5,873 | 5,729 | 5,798 | 4,000 | 1.45 | 1,097 |
| Tariat | Тариат | 5,082 | 5,022 | 5,086 | 3,800 | 1.34 | 644 |
| Tüvshrüülekh | Түвшрүүлэх | 3,489 | 3,410 | 3,438 | 1,200 | 2.86 | 1,869 |
| Tsakhir | Цахир | 2,058 | 2,126 | 2,143 | 3,398 | 0.63 | 438 |
| Tsenkher | Цэнхэр | 5,480 | 5,387 | 5,414 | 3,200 | 1.69 | 997 |
| Tsetserleg | Цэцэрлэг | 2,058 | 3,955 | 3,813 | 2,500 | 1.53 | 848 |
Question:
what is the least population of 2009?
Answer:
2,143