Snowflake-costs.md

@@ -12,4 +12,5 @@
 |2021-02-04           |$0.09|
 |2021-03-04           |$0.16|
 |2021-04-05           |$0.17|
-|2021-04-30           |$0.11|
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+|2021-04-30           |$0.11|
+|2021-05-31           |$0.15|
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