$Sell
Sell_Trades: ('Total SELL Trades', 'Greece Mainland']
MCP: ('Market Clearing Price', 'Greece Mainland']
Producers: ('PRODUCTION TECHNOLOGY / MTU', 'PRODUCTION']
Consumers: ('DEMAND / MTU', 'DEMAND']
Sell_Orders: ('SELL TRADES Price Type /  MTU', 'SELL')
Imports: ('BORDER IMPORTS', ' IMPORTS']
Imports_Implicit: ('BORDER IMPORTS (IMPLICIT)', ' IMPORTS (IMPLICIT)']
$Buy
Buy_Trades: ('Total BUY Trades', 'Greece Mainland']
MCP: ('Market Clearing Price', 'Greece Mainland']
Producers: ('PRODUCTION TECHNOLOGY / MTU', 'PRODUCTION']
Consumers:  ('DEMAND / MTU', 'DEMAND']
Buy_Orders: ('BUY TRADES Price Type /  MTU', 'BUY')
Exports: ('BORDER EXPORTS', 'EXPORTS']
Exports_Implicit: ('BORDER EXPORTS (IMPLICIT)', 'EXPORTS (IMPLICIT)']
;