To determine the consumer price index (CPI), what needs to be known? 1) Only the current market basket at current prices 2) The values of the base-year market basket at current and base-year prices 3) The values of the current market basket at current and base-year prices 4) Only the current market basket at base-year prices 5) The values of the current market basket at current prices and the base-year market basket at base-year prices