diff --git a/module2/exo4/data.csv b/module2/exo4/data.csv
new file mode 100644
index 0000000000000000000000000000000000000000..c1f68c643e8b8159bdd35bb4be31a2e2f25b42ff
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+++ b/module2/exo4/data.csv
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+Date,BeginningTime,Length,AwakeningReason,Feeling
+2023-10-18,1:00:00,8:00:00,AlarmClock,Rested
+2023-10-18,16:15:00,17:10:00,Natural,Rested
+2023-10-19,1:28:00,5:02:00,AlarmClock,NotVeryRested
+2023-10-19,18:45:00,1:42:00,AlarmMissed,Rested
+2023-10-20,1:10:00,6:20:00,AlarmClock,QuiteRested