diff --git a/Sponsors.md b/Sponsors.md
index 1f26401..75ca965 100644
--- a/Sponsors.md
+++ b/Sponsors.md
@@ -3,7 +3,7 @@
 Your contributions are keeping this project alive. Dear ImGui is used by [many projects](https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui). The library is available under a free and permissive license, but continued maintenance and development are a full-time endeavor which we would like to sustain and grow. In addition to maintenance and stability there are many desirable features yet to be added. We are consistently doing R&D and sitting on unfinished features needing work.
 
 Dear ImGui has first been in development as a side project from 2015 to 2017, then became my main focus since 2018.
-Thanks to our sponsors, in 2020, we poured ~2500 hours of work into Dear ImGui R&D.
+Thanks to our sponsors, in 2020, we poured ~2500 hours of work into Dear ImGui R&D. In 2021 ~1600 hours.
 
 Businesses: support continued development and maintenance via invoiced technical support, maintenance, sponsoring contracts. **If your company is using Dear ImGui, please consider reaching out today to say hello!**: