diff --git a/etl-scripts/calculated_tables/cohort_dates.sql b/etl-scripts/calculated_tables/cohort_dates.sql
index 5a69bb5..1ab7b6f 100644
--- a/etl-scripts/calculated_tables/cohort_dates.sql
+++ b/etl-scripts/calculated_tables/cohort_dates.sql
@@ -280,7 +280,31 @@ insert into dates (endDate) values
 ("2022-09-30"),
 ("2022-10-31"),
 ("2022-11-30"),
-("2022-12-31")
+("2022-12-31"),
+("2023-01-31"),
+("2023-02-28"),
+("2023-03-31"),
+("2023-04-30"),
+("2023-05-31"),
+("2023-06-30"),
+("2023-07-31"),
+("2023-08-31"),
+("2023-09-30"),
+("2023-10-31"),
+("2023-11-30"),
+("2023-12-31"),
+("2024-01-31"),
+("2024-02-29"),
+("2024-03-31"),
+("2024-04-30"),
+("2024-05-31"),
+("2024-06-30"),
+("2024-07-31"),
+("2024-08-31"),
+("2024-09-30"),
+("2024-10-31"),
+("2024-11-30"),
+("2024-12-31")
 ;
 
 
diff --git a/etl-scripts/stored-procedures/generate_cohort_dates.sql b/etl-scripts/stored-procedures/generate_cohort_dates.sql
new file mode 100644
index 0000000..ecec44b
--- /dev/null
+++ b/etl-scripts/stored-procedures/generate_cohort_dates.sql
@@ -0,0 +1,44 @@
+CREATE DEFINER=`henrykorir`@`%` PROCEDURE `generate_cohort_dates`()
+BEGIN
+DECLARE month_index INT DEFAULT 1;
+DECLARE month_start_date VARCHAR(100) DEFAULT "";
+DECLARE max_end_date DATETIME DEFAULT NULL;
+DECLARE end_date DATETIME DEFAULT NULL;
+DECLARE MAX_MONTHS INT DEFAULT 12;
+DECLARE end_day DATETIME DEFAULT CONCAT((YEAR(NOW()) + 1),"-12-31");
+DECLARE start_year INT DEFAULT 2000;
+
+CREATE TABLE IF NOT EXISTS dates (
+       endDate DATETIME,
+       INDEX endDate (endDate)
+);
+
+SELECT MAX(endDate) INTO max_end_date FROM dates;
+-- SELECT max_end_date;
+
+IF (max_end_date IS NULL) THEN
+   SET start_year := 2000;
+ELSE
+   SET start_year := YEAR(max_end_date) + 1;
+END IF;
+
+-- SELECT start_year;
+LOOP_PER_YEAR: LOOP
+   WHILE (month_index <= MAX_MONTHS) DO 
+   
+        SET month_start_date := CONCAT(start_year,'-',month_index,'-01');
+       
+        SELECT LAST_DAY(month_start_date) INTO end_date;
+   
+        INSERT INTO dates (endDate) VALUES(end_date);
+   
+        SET month_index := month_index + 1;
+  
+   END WHILE;
+   SET month_index := 1;
+   SET start_year := start_year + 1;
+   IF (start_year > YEAR(end_day)) THEN
+      LEAVE LOOP_PER_YEAR; -- exit years loop
+   END IF;
+ END LOOP;
+END
\ No newline at end of file