diff --git a/README.md b/README.md
index 8af0bf0..5c46a34 100644
--- a/README.md
+++ b/README.md
@@ -83,3 +83,8 @@ Credentials for the preconfigured admin user are:
 * Password: `AdminDev`
 
 You can also login as regular user using any credential in the LDAP user directory at `./data/ldap/users.ldif`.
+
+The job archive with 1867 jobs originates from the second half of 2020.
+Roughly 2700 jobs from the first week of 2021 are loaded with data from InfluxDB.
+Some views of ClusterCockpit (e.g. the Users view) show the last week or month.
+To show some data there you have to set the filter to time periods with jobs (August 2020 to January 2021).