CREATE TABLE table_23161 ("Year" TEXT, "Number of Candidates" FLOAT, "Total votes" FLOAT, "Average voters per candidate" FLOAT, "Percentage of vote" TEXT, "Saved deposits" FLOAT, "Change  ( percentage points ) " TEXT, "Number of MPs" FLOAT)

How many elections had 1423 average voters per candidate?
SELECT COUNT("Change (percentage points)") FROM table_23161 WHERE "Average voters per candidate" = '1423'
SELECT COUNT("Change (percentage points)") FROM "table_23161" WHERE "Average voters per candidate" = '1423'