the totals (via the 2008 election report, p. 218-238,
http://www.scvotes.org/files/ElectionReports/Election_Report_2008.pdf )
1968: White 652096 / Black 200778... and give a total lower than the combined numbers of the two races.
1970: White 668397 (75%) / Black 220303 (25%)
1972: White 772603 (75%) / Black 260749 (25%) - voting age dropped to 18
1974: White 736302 (74%) / Black 261110 (26%) - uh, mass discovery of dead voters?
1976: White 827810 (74%) / Black 284876 (26%)
1978: White 804742 (73%) / Black 291486 (27%)
1980: White 914363 (74%) / Black 319826 (26%)
1982: White 886963 (72%) / Black 341709 (28%)
1984: White 1005186 (72%) / Black 388948 (28%)
1986: White 928898 (72%) / Black 366942 (28%)
1988: White 1048952 (73%) / Black 384362 (27%)
1990: White 996216 (74%) / Black 354700 (26%)
1992: White 1149516 (75%) / Black 381524 (25%)
1994: White 1122585 (75%) / Black 370351 (25%)
1996: White 1324927 (73%) / Nonwhite 489850 (27%)
1998: White 1469699 (73%) / Black 536248 (27%)
2000: White 1643956 (73%) / Black 599692 (26%)
2002: White 1490026 (73%) / Black 533282 (26%)
2004: White 1656016 (72%) / Black 625452 (27%)
2006: White 1750536 (71%) / Black 661432 (27%)
2008: White 1778779 (70%) / Black 721045 (28%)
and the map for 2008 (White in red, African-American in blue)
