Update README.md

README.md

@@ -36,46 +36,46 @@ Date: The date of the data entry. (string)  (datetime format='%Y-%m-%d')
 
 Open, Close, High, Low: Daily price range of Crude Oil. Dollar per barrel ($/bbl)
 
-California_Crude_Oil_First_Purchase_Price_$/bbl: First purchase price for crude oil in California. ($/bbl)
+California_Crude_Oil_First_Purchase_Price_$/bbl: "First purchase" price for crude oil in California of the previous month. ($/bbl)
 
-Texas_Crude_Oil_First_Purchase_Price_$/bbl: First purchase price for crude oil in Texas. ($/bbl)
+Texas_Crude_Oil_First_Purchase_Price_$/bbl: "First purchase" price for crude oil in Texas of the previous month. ($/bbl)
 
-US_Crude_Oil_First_Purchase_Price_$/bbl: U.S. average first purchase price for crude oil. ($/bbl)
+US_Crude_Oil_First_Purchase_Price_$/bbl: U.S. average "first purchase" price for crude oil of the previous month. ($/bbl)
 
-US_Imports_from_Canada_of_Crude_Oil_Mbbl/d: U.S. crude oil imports from Canada. (thousand bbl/day)
+US_Imports_from_Canada_of_Crude_Oil_Mbbl/d: U.S. crude oil imports from Canada of the previous month. (thousand bbl/day)
 
-US_Imports_from_Colombia_of_Crude_Oil_Mbbl/d: U.S. crude oil imports from Colombia. (thousand bbl/day)
+US_Imports_from_Colombia_of_Crude_Oil_Mbbl/d: U.S. crude oil imports from Colombia of the previous month. (thousand bbl/day)
 
-US_Imports_from_United_Kingdom_of_Crude_Oil_Mbbl/d: U.S. crude oil imports from the U.K. (thousand bbl/day)
+US_Imports_from_United_Kingdom_of_Crude_Oil_Mbbl/d: U.S. crude oil imports from the U.K. of the previous month (thousand bbl/day)
 
-US_Imports_from_Mexico_of_Crude_Oil_Mbbl/d: U.S. crude oil imports from Mexico. (thousand bbl/day)
+US_Imports_from_Mexico_of_Crude_Oil_Mbbl/d: U.S. crude oil imports from Mexico of the previous month. (thousand bbl/day)
 
-US_Imports_from_OPEC_Countries_of_Crude_Oil_Mbbl/d: U.S. crude oil imports from OPEC countries. (thousand bbl/day)
+US_Imports_from_OPEC_Countries_of_Crude_Oil_Mbbl/d: U.S. crude oil imports from OPEC countries of the previous month. (thousand bbl/day)
 
 US_Imports_from_Non-OPEC_Countries_of_Crude_Oil_Mbbl/d: 
-U.S. crude oil imports from Non-OPEC countries. (thousand bbl/day)
+U.S. crude oil imports from Non-OPEC countries of the previous month. (thousand bbl/day)
 
-US_Imports_of_Crude_Oil_Mbbl/d: Total U.S. crude oil imports. (thousand bbl/day)
+US_Imports_of_Crude_Oil_Mbbl/d: Total U.S. crude oil imports of the previous month. (thousand bbl/day)
 
-US_Exports_to_Canada_of_Crude_Oil_Mbbl/d: U.S. crude oil exports to Canada. (thousand bbl/day)
+US_Exports_to_Canada_of_Crude_Oil_Mbbl/d: U.S. crude oil exports to Canad of the previous montha. (thousand bbl/day)
 
-US_Exports_of_Crude_Oil_Mbbl/d: Total U.S. crude oil exports. (thousand bbl/day)
+US_Exports_of_Crude_Oil_Mbbl/d: Total U.S. crude oil exports of the previous month. (thousand bbl/day)
 
 US_Net_Imports_from_Canada_of_Crude_Oil_Mbbl/d: U.S. net imports (imports minus exports) from Canada. (thousand bbl/day)
 
-US_Net_Imports_from_Colombia_of_Crude_Oil_Mbbl/d: U.S. net imports from Colombia. (thousand bbl/day)
+US_Net_Imports_from_Colombia_of_Crude_Oil_Mbbl/d: U.S. net imports from Colombia of the previous month. (thousand bbl/day)
 
 US_Net_Imports_from_Mexico_of_Crude_Oil_Mbbl/d: U.S. net imports from Mexico. (thousand bbl/day)
 
 US_Net_Imports_from_United_Kingdom_of_Crude_Oil_Mbbl/d: 
-U.S. net imports from the U.K. (thousand bbl/day)
+U.S. net imports from the U.K. of the previous month (thousand bbl/day)
 
 US_Net_Imports_from_OPEC_Countries_of_Crude_Oil_Mbbl/d: 
-U.S. net imports from OPEC countries. (thousand bbl/day)
+U.S. net imports from OPEC countries of the previous month. (thousand bbl/day)
 
-US_Net_Imports_from_Non-OPEC_Countries_of_Crude_Oil_Mbbl/d: U.S. net imports from Non-OPEC countries. (thousand bbl/day)
+US_Net_Imports_from_Non-OPEC_Countries_of_Crude_Oil_Mbbl/d: U.S. net imports from Non-OPEC countries of the previous month. (thousand bbl/day)
 
-US_Net_Imports_of_Crude_Oil_Mbbl/d: Total U.S. net imports. (thousand bbl/day)
+US_Net_Imports_of_Crude_Oil_Mbbl/d: Total U.S. net imports of the previous month. (thousand bbl/day)
 
 # 📚 Data Sources
 The data in this project is sourced from two main websites.