Table:
|  | June 30,<br>2019 | June 30,<br>2018 |
| --- | --- | --- |
| Deferred maintenance | $192,955 | $164,986 |
| Other deferred revenue | 10,287 | 9,539 |
| Total deferred revenue, net | 203,242 | 174,525 |
| Less: current portion | 144,230 | 130,865 |
| Non-current deferred revenue, net | $59,012 | $43,660 |
Paragraphs:
Deferred Revenue
The following table summarizes contract liabilities which are shown as deferred revenue (in thousands):
Total deferred revenue increased primarily due to the extended duration period of new maintenance contracts during fiscal year 2019.
Question:
Which years does the table provide information for the company's contract liabilities?
Answer: 2019, 2018