what is the difference between the per capita income in richland county and in sheridan county?
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col : rank | county | per capita\nincome | median\nhousehold\nincome | median\nfamily\nincome | population | number of\nhouseholds row 1 : 2 | gallatin | $27,423 | $50,136 | $65,029 | 89,513 | 36,550 row 2 :  | united states | $27,334 | $51,914 | $62,982 | 308,745,538 | 116,716,292 row 3 : 3 | stillwater | $27,168 | $57,227 | $65,438 | 9,117 | 3,796 row 4 : 4 | richland | $26,888 | $52,516 | $60,236 | 9,746 | 4,167 row 5 : 5 | fallon | $26,819 | $52,529 | $64,500 | 2,890 | 1,233 row 6 : 6 | sheridan | $26,537 | $39,578 | $55,313 | 3,384 | 1,587 row 7 : 7 | jefferson | $26,437 | $56,695 | $67,195 | 11,406 | 4,512 row 8 : 8 | yellowstone | $26,152 | $48,641 | $62,380 | 147,972 | 60,672 row 9 : 9 | lewis and clark | $25,894 | $50,238 | $65,573 | 63,395 | 26,694 row 10 : 10 | carbon | $24,983 | $49,010 | $59,823 | 10,078 | 4,571 row 11 : 11 | daniels | $24,737 | $38,125 | $49,479 | 1,751 | 798 row 12 : 15 | missoula | $24,343 | $42,887 | $58,302 | 109,299 | 45,926 row 13 : 18 | judith basin | $24,029 | $41,473 | $54,479 | 2,072 | 924 row 14 : 19 | ravalli | $23,908 | $43,000 | $53,004 | 40,212 | 16,933 row 15 : 21 | granite | $23,222 | $36,052 | $47,685 | 3,079 | 1,417 row 16 : 22 | cascade | $22,963 | $42,389 | $53,540 | 81,327 | 33,809 row 17 : 23 | sweet grass | $22,785 | $43,723 | $56,552 | 3,651 | 1,590 row 18 : 25 | garfield | $22,424 | $42,955 | $54,375 | 1,206 | 532 row 19 : 27 | deer lodge | $21,921 | $35,310 | $51,076 | 9,298 | 4,018 row 20 : 28 | custer | $21,676 | $38,913 | $49,011 | 11,699 | 5,031 row 21 : 30 | hill | $21,420 | $43,606 | $55,963 | 16,096 | 6,275 row 22 : 32 | prairie | $21,296 | $34,896 | $43,500 | 1,179 | 551 row 23 : 33 | beaverhead | $21,110 | $38,264 | $53,036 | 9,246 | 4,014 row 24 : 35 | treasure | $20,882 | $37,969 | $51,458 | 718 | 335 row 25 : 40 | chouteau | $20,202 | $41,064 | $50,201 | 5,813 | 2,294 row 26 : 41 | lake | $20,164 | $37,274 | $47,437 | 28,746 | 11,432 row 27 : 42 | rosebud | $19,844 | $44,776 | $56,282 | 9,233 | 3,395 row 28 : 44 | broadwater | $19,606 | $44,667 | $46,949 | 5,612 | 2,347 row 29 : 45 | golden valley | $19,319 | $35,726 | $48,750 | 884 | 363 row 30 : 49 | wheatland | $18,474 | $30,321 | $41,161 | 2,168 | 887 row 31 : 50 | sanders | $18,472 | $30,622 | $37,514 | 11,413 | 5,121
what is the difference between the per capita income in richland county and in sheridan county?
Rank County Per capita\nincome Median\nhousehold\nincome Median\nfamily\nincome Population Number of\nhouseholds
1 McCone $32,205 $42,998 $52,636 1,734 774
2 Gallatin $27,423 $50,136 $65,029 89,513 36,550
United States $27,334 $51,914 $62,982 308,745,538 116,716,292
3 Stillwater $27,168 $57,227 $65,438 9,117 3,796
4 Richland $26,888 $52,516 $60,236 9,746 4,167
5 Fallon $26,819 $52,529 $64,500 2,890 1,233
6 Sheridan $26,537 $39,578 $55,313 3,384 1,587
7 Jefferson $26,437 $56,695 $67,195 11,406 4,512
8 Yellowstone $26,152 $48,641 $62,380 147,972 60,672
9 Lewis and Clark $25,894 $50,238 $65,573 63,395 26,694
10 Carbon $24,983 $49,010 $59,823 10,078 4,571
11 Daniels $24,737 $38,125 $49,479 1,751 798
12 Flathead $24,721 $44,998 $53,940 90,928 37,504
13 Park $24,717 $38,830 $50,252 15,636 7,310
14 Dawson $24,602 $50,752 $63,982 8,966 3,749
15 Missoula $24,343 $42,887 $58,302 109,299 45,926
16 Valley $24,305 $42,050 $54,096 7,369 3,198
17 Phillips $24,227 $36,453 $55,362 4,253 1,819
18 Judith Basin $24,029 $41,473 $54,479 2,072 924
19 Ravalli $23,908 $43,000 $53,004 40,212 16,933
Montana $23,836 $43,872 $55,725 989,415 409,607
20 Madison $23,265 $48,167 $56,406 7,691 3,560
21 Granite $23,222 $36,052 $47,685 3,079 1,417
22 Cascade $22,963 $42,389 $53,540 81,327 33,809
23 Sweet Grass $22,785 $43,723 $56,552 3,651 1,590
24 Wibaux $22,579 $40,417 $51,354 1,017 457
25 Garfield $22,424 $42,955 $54,375 1,206 532
26 Fergus $22,295 $37,607 $48,623 11,586 5,099
27 Deer Lodge $21,921 $35,310 $51,076 9,298 4,018
28 Custer $21,676 $38,913 $49,011 11,699 5,031
29 Powder River $21,543 $37,685 $50,156 1,743 755
30 Hill $21,420 $43,606 $55,963 16,096 6,275
31 Silver Bow $21,357 $37,986 $52,288 34,200 14,932
32 Prairie $21,296 $34,896 $43,500 1,179 551
33 Beaverhead $21,110 $38,264 $53,036 9,246 4,014
34 Petroleum $21,008 $36,875 $39,107 494 225
35 Treasure $20,882 $37,969 $51,458 718 335
36 Musselshell $20,875 $37,033 $47,860 4,538 2,046
37 Carter $20,681 $35,703 $47,955 1,160 532
38 Teton $20,509 $39,516 $49,102 6,073 2,450
39 Toole $20,464 $42,949 $54,722 5,324 2,015
40 Chouteau $20,202 $41,064 $50,201 5,813 2,294
41 Lake $20,164 $37,274 $47,437 28,746 11,432
42 Rosebud $19,844 $44,776 $56,282 9,233 3,395
43 Lincoln $19,626 $30,823 $39,600 19,687 8,843
44 Broadwater $19,606 $44,667 $46,949 5,612 2,347
45 Golden Valley $19,319 $35,726 $48,750 884 363
46 Mineral $19,209 $37,256 $44,271 4,223 1,911
47 Liberty $19,097 $40,212 $44,957 2,339 822
48 Pondera $18,989 $36,419 $47,656 6,153 2,285
49 Wheatland $18,474 $30,321 $41,161 2,168 887
50 Sanders $18,472 $30,622 $37,514 11,413 5,121
51 Powell $17,849 $39,851 $45,339 7,027 2,466
52 Roosevelt $17,821 $37,451 $50,146 10,425 3,553
53 Meagher $17,318 $31,577 $40,057 1,891 806
54 Glacier $17,053 $38,075 $44,397 13,399 4,361
55 Blaine $16,813 $37,034 $40,890 6,491 2,357
56 Big Horn $15,066 $36,550 $41,985 12,865 4,004
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