Table:
|  | 2019 | 2018 | 2017 |
| --- | --- | --- | --- |
| Balance as of January 1, | $151.9 | $142.0 | $144.4 |
| Additions (1) | 42.5 | 15.7 | 11.6 |
| Reversals | — | — | (9.1) |
| Foreign currency translation | (0.2) | (5.8) | (4.9) |
| Balance as of December 31, | $194.2 | $151.9 | $142.0 |
Paragraphs:
AMERICAN TOWER CORPORATION AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Tabular amounts in millions, unless otherwise disclosed)
At December 31, 2019 and 2018, the Company has provided a valuation allowance of $194.2 million and $151.9 million, respectively, which primarily relates to foreign items. The increase in the valuation allowance for the year ending December 31, 2019 is due to uncertainty as to the timing of, and the Company’s ability to recover, net deferred tax assets in certain foreign operations in the foreseeable future, offset by fluctuations in foreign currency exchange rates. The amount of deferred tax assets considered realizable, however, could be adjusted if objective evidence in the form of cumulative losses is no longer present and additional weight may be given to subjective evidence such as the Company’s projections for growth.
A summary of the activity in the valuation allowance is as follows:
(1) Includes net charges to expense and allowances established due to acquisition.
The recoverability of the Company’s deferred tax assets has been assessed utilizing projections based on its current operations. Accordingly, the recoverability of the deferred tax assets is not dependent on material asset sales or other non-routine transactions. Based on its current outlook of future taxable income during the carryforward period, the Company believes that deferred tax assets, other than those for which a valuation allowance has been recorded, will be realized.
Question:
In which years did the company provide a valuation allowance?
Answer: 2019, 2018