what is the difference between white voters and black voters in 1948?
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col :  | 1948 | 1952 | 1956 | 1960 | 1964 row 1 : all voters | 50 | 45 | 42 | 50 | 61 row 2 : white | 50 | 43 | 41 | 49 | 59 row 3 : black | 50 | 79 | 61 | 68 | 94 row 4 : college educated | 22 | 34 | 31 | 39 | 52 row 5 : high school educated | 51 | 45 | 42 | 52 | 62 row 6 : grade school educated | 64 | 52 | 50 | 55 | 66 row 7 : professional & business | 19 | 36 | 32 | 42 | 54 row 8 : white collar | 47 | 40 | 37 | 48 | 57 row 9 : manual worker | 66 | 55 | 50 | 60 | 71 row 10 : farmer | 60 | 33 | 46 | 48 | 53 row 11 : union member | 76 |  | 51 | 62 | 77 row 12 : not union | 42 |  | 35 | 44 | 56 row 13 : protestant | 43 | 37 | 37 | 38 | 55 row 14 : catholic | 62 | 56 | 51 | 78 | 76 row 15 : republican |  | 8 | 4 | 5 | 20 row 16 : independent |  | 35 | 30 | 43 | 56 row 17 : democrat |  | 77 | 85 | 84 | 87 row 18 : east | 48 | 45 | 40 | 53 | 68 row 19 : midwest | 50 | 42 | 41 | 48 | 61 row 20 : west | 49 | 42 | 43 | 49 | 60 row 21 : south | 53 | 51 | 49 | 51 | 52
what is the difference between white voters and black voters in 1948?
1948 1952 1956 1960 1964
all voters 50 45 42 50 61
White 50 43 41 49 59
Black 50 79 61 68 94
College educated 22 34 31 39 52
High School educated 51 45 42 52 62
Grade School educated 64 52 50 55 66
Professional & Business 19 36 32 42 54
White Collar 47 40 37 48 57
Manual worker 66 55 50 60 71
Farmer 60 33 46 48 53
Union member 76 51 62 77
Not union 42 35 44 56
Protestant 43 37 37 38 55
Catholic 62 56 51 78 76
Republican 8 4 5 20
Independent 35 30 43 56
Democrat 77 85 84 87
East 48 45 40 53 68
Midwest 50 42 41 48 61
West 49 42 43 49 60
South 53 51 49 51 52
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