How to read a company's numbers before comparing or converting them: the units statement (actual dollars, not millions), reporting currency and, for a foreign issuer such as TSMC, the conversion policy and each period's exact exchange rate with its source (average rate for income and cash flow, closing rate for the balance sheet, stated as foreign currency per US dollar); the ADR ratio and per-share basis (per ADS for a foreign issuer that has one); stock splits adjusted for and any as-reported pre-split values; the fiscal year end and convention; the business type and statement template; the accounting basis (US GAAP, IFRS); and any definitions the record gives for its own line items and segments. All money is in actual dollars (not thousands, not millions), per-share figures in dollars per share (per ADS for a foreign issuer that has one), share counts in actual shares, split-adjusted. A foreign issuer's figures are converted to US dollars at the rate recorded on each period. Every period's dates are in list_periods.