Add percentage that was missing

Author: rylev

posts/2022-02-15-Rust-Survey-2021.md

@@ -62,7 +62,7 @@ When asked what their biggest worries for the future of Rust are, the top answer
 
 The next largest concern was that the language would become too complex (33%). This was combined with a relative small number of folks calling for additional features (especially for ones not already in the pipeline).
 
-Finally, the third largest concern was that those working on Rust would not find the proper support they need to continue to develop the language and community in a healthy way. With the establishment of the Rust Foundation, support structures are coming into place that hopefully will address this point, but no doubt plenty of work is still ahead of us.
+Finally, the third largest concern was that those working on Rust would not find the proper support they need to continue to develop the language and community in a healthy way (30%). With the establishment of the Rust Foundation, support structures are coming into place that hopefully will address this point, but no doubt plenty of work is still ahead of us.
 
 ## An Exciting Future