Question: With a type of mass suicide located in france and a low estimate greater than 16, the sum of the high estimate numbers listed is what number?
SQL: SELECT SUM("High Estimate") FROM "2-13046272-6" WHERE "Type" = 'mass suicide' AND "Location" = 'france' AND "Low Estimate" > 16.0;

Question: What is the sum of low estimate(s) that is listed for the date of 1978?
SQL: SELECT SUM("Low Estimate") FROM "2-13046272-6" WHERE "Date" = '1978';