As Ken says, slightly high but not very much over normal. Here's a link:
https://www.mountsinai.org/health-library/tests/wbc-count
Hi, the test report should give you the normal range, and yours says [4-11]. Yours is just a little bit high. It can easily be at 20 during an infection. No doc would be alarmed at that.
A high-ish WBC can sometimes be a sign of chronic systemic inflammation, without any infection.
The other part is only the units of measure--> 10^9/L