Table:
|  |  |  | Fiscal Years |
| --- | --- | --- | --- |
|  | 2019 | 2018 | 2017 |
| Revenue by geography: |  |  |  |
| Asia Pacific (1) | $3,049 | $4,905 | $5,810 |
| Europe | 2,459 | 1,280 | 2,015 |
| North America (2) | 4,802 | 6,444 | 4,324 |
| Total revenue | $10,310 | $12,629 | $12,149 |
Paragraphs:
The following is a breakdown of revenue by shipment destination (in thousands):
(1) Asia Pacific includes revenue from China $1.1 million or 11% and Japan of $1.8 million or 17% of total revenue in 2019 and $1.8 million or 15% and $1.6 million or 12% of total revenue in 2018, respectively. In 2017, revenue from China and Japan were $1.3 million or 11% and $1.5 million or 12%, respectively.
(2) North America includes revenue from the United States of $4.7 million or 46% of total revenue in 2019, $6.4 million or 50% of total revenue in 2018 and $4.2 million or 34% of total revenue in 2017.
Question:
What is the average revenue from North America in 2018 and 2019?