Question: What is the total for 1986?
SQL: SELECT COUNT("Rank") FROM "2-18435715-1" WHERE "Year" = 1986.0;

Question: What is the name before 1954 with more than 15 floors?
SQL: SELECT "Name" FROM "2-18435715-1" WHERE "Year" < 1954.0 AND "Floors" > 15.0;

Question: What is the lowest rank for El Paso Natural Gas Company Building?
SQL: SELECT MIN("Rank") FROM "2-18435715-1" WHERE "Name" = 'El Paso Natural Gas Company Building';