Table:
|  |  | Year Ended |  |
| --- | --- | --- | --- |
|  | June 30,<br>2019 | June 30,2018 | June 30,<br>2017 |
| Research and development | 21.1% | 18.7% | 15.4% |
| Sales and marketing | 28.7% | 27.2% | 26.8% |
| General and administrative | 5.6% | 5.2% | 6.2% |
| Acquisition and integration costs, net of bargain purchase gain | 0.3% | 5.5% | 2.2% |
| Restructuring charges, net of reversals | 0.5% | 0.8% | 1.5% |
| Amortization of intangibles | 0.6% | 0.9% | 1.4% |
| Total operating expenses | 56.8% | 58.3% | 53.5% |
| Operating (loss) income | (1.5)% | (3.9)% | 1.0% |
Paragraphs:
Operating Expenses
The following table highlights our operating expenses and operating loss as a percentage of net revenues:
Question:
Which years does the table provide information for the company's operating expenses and operating loss as a percentage of net revenues?
Answer: 2019, 2018, 2017