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:
| Township | FIPS | Population\ncenter | Population | Population\ndensity\n(/mi²) | Population\ndensity\n(/km²) | Land area\n(mi²) | Land area\n(km²) | Water area\n(mi²) | Water area\n(km²) | Geographic coordinates |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Bayliss | 90159 |  | 708 | 24.6 | 9.5 | 28.81 | 74.62 | 0.0979 | 0.2536 | 35°24′10″N 93°14′06″W﻿ / ﻿35.40278°N 93.23500°W |
| Burnett | 90558 |  | 452 | 20.9 | 8.1 | 21.65 | 56.07 | 0.1051 | 0.2722 | 35°19′10″N 92°52′33″W﻿ / ﻿35.31944°N 92.87583°W |
| Center | 90735 |  | 515 | 36.8 | 14.2 | 13.99 | 36.23 | 0.0339 | 0.0878 | 35°24′20″N 92°57′16″W﻿ / ﻿35.40556°N 92.95444°W |
| Clark | 90813 | London | 2969 | 115.3 | 44.6 | 25.73 | 66.64 | 6.0444 | 15.6549 | 35°19′45″N 93°14′46″W﻿ / ﻿35.32917°N 93.24611°W |
| Convenience | 90921 |  | 933 | 50.4 | 19.4 | 18.53 | 47.99 | 0.0942 | 0.2440 | 35°20′00″N 92°56′41″W﻿ / ﻿35.33333°N 92.94472°W |
| Dover | 91134 | Dover | 5277 | 119.1 | 46.0 | 44.29 | 114.7 | 0.3637 | 0.9420 | 35°23′30″N 93°07′01″W﻿ / ﻿35.39167°N 93.11694°W |
| Freeman | 91377 |  | 98 | 0.8 | 0.3 | 119.78 | 310.2 | 0.0000 | 0.0000 | 35°39′10″N 93°04′06″W﻿ / ﻿35.65278°N 93.06833°W |
| Galla | 91407 | Pottsville | 3523 | 88.7 | 34.3 | 39.71 | 102.8 | 1.8410 | 4.7682 | 35°13′15″N 93°02′46″W﻿ / ﻿35.22083°N 93.04611°W |
| Griffin | 91536 |  | 901 | 26.5 | 10.2 | 33.96 | 87.96 | 0.1106 | 0.2865 | 35°25′30″N 92°52′36″W﻿ / ﻿35.42500°N 92.87667°W |
| Gum Log | 91560 |  | 1420 | 71.6 | 27.6 | 19.84 | 51.39 | 0.0142 | 0.0368 | 35°16′30″N 92°59′51″W﻿ / ﻿35.27500°N 92.99750°W |
| Illinois | 91812 | Russellville | 25841 | 540.9 | 208.9 | 47.77 | 123.7 | 6.6022 | 17.0996 | 35°17′00″N 93°07′46″W﻿ / ﻿35.28333°N 93.12944°W |
| Jackson | 91875 | Hector | 1191 | 11.5 | 4.4 | 103.72 | 268.6 | 0.0505 | 0.1308 | 35°29′20″N 92°57′01″W﻿ / ﻿35.48889°N 92.95028°W |
| Liberty | 92181 |  | 805 | 14.2 | 5.5 | 56.64 | 146.7 | 0.0028 | 0.0073 | 35°29′40″N 93°03′16″W﻿ / ﻿35.49444°N 93.05444°W |
| Martin | 92415 |  | 1482 | 23.7 | 9.2 | 62.46 | 161.8 | 0.3931 | 1.0181 | 35°28′25″N 93°10′06″W﻿ / ﻿35.47361°N 93.16833°W |
| Moreland | 92553 |  | 700 | 52.2 | 20.2 | 13.40 | 34.71 | 0.0683 | 0.1769 | 35°21′30″N 92°59′46″W﻿ / ﻿35.35833°N 92.99611°W |
| Phoenix | 92871 |  | 334 | 26.7 | 10.3 | 12.51 | 32.40 | 0.0000 | 0.0000 | 35°24′30″N 93°00′31″W﻿ / ﻿35.40833°N 93.00861°W |
| Smyrna | 93420 |  | 173 | 2.4 | 0.9 | 70.69 | 183.1 | 0.0218 | 0.0565 | 35°38′10″N 92°53′46″W﻿ / ﻿35.63611°N 92.89611°W |
| Valley | 93765 |  | 2776 | 125.7 | 48.5 | 22.09 | 57.21 | 0.0144 | 0.0373 | 35°20′05″N 93°02′46″W﻿ / ﻿35.33472°N 93.04611°W |
| Wilson | 94089 | Atkins | 4371 | 77.6 | 30.0 | 56.32 | 145.9 | 3.0305 | 7.8490 | 35°13′30″N 92°55′01″W﻿ / ﻿35.22500°N 92.91694°W |
Question:
how much greater is the population of clark township than freeman township?
Answer:
2871