CREATE TABLE table_23793 ("shareholder name" TEXT, "A shares" FLOAT, "B shares" FLOAT, "% of capital" TEXT, "% of votes" TEXT)

How many different numbers of B shares does Handelsbanken fonder have?
SELECT COUNT("B shares") FROM table_23793 WHERE "shareholder name" = 'Handelsbanken fonder'
SELECT COUNT("B shares") FROM "table_23793" WHERE "shareholder name" = 'Handelsbanken fonder'