Koha-clms/installer/data/mysql/pl-PL/optional/parameters.sql

INSERT INTO `currency` (currency, rate, symbol, active) VALUES
('PLN', 1.0, 'zł', 1),
('USD', 2.77, '$', 0),
('GBP', 4.5, '£', 0),
('EUR', 4.1, '€', 0);