SELECT 'Poland' as country, 
		sum(x19jan) as x19jan, 
		sum(x19feb) as x19feb, 
		sum(x19mar) as x19mar, 
		sum(x19apr) as x19apr,
		sum(x19may) as x19may, 
		sum(x19jun) as x19jun, 
		sum(x19jul) as x19jul,
		sum(x19aug) as x19aug,
		sum(x19sep) as x19sep,
		sum(x19oct) as x19oct, 
		sum(x19nov) as x19nov, 
		sum(x19dec) as x19dec,
		
		sum(x20jan) as x20jan, 
		sum(x20feb) as x20feb, 
		sum(x20mar) as x20mar, 
		sum(x20apr) as x20apr,
		sum(x20may) as x20may, 
		sum(x20jun) as x20jun, 
		sum(x20jul) as x20jul,
		sum(x20aug) as x20aug,
		sum(x20sep) as x20sep,
		sum(x20oct) as x20oct, 
		sum(x20nov) as x20nov, 
		sum(x20dec) as x20dec,
		
		sum(x21jan) as x21jan, 
		sum(x21feb) as x21feb, 
		sum(x21mar) as x21mar, 
		sum(x21apr) as x21apr,
		sum(x21may) as x21may, 
		sum(x21jun) as x21jun, 
		sum(x21jul) as x21jul,
		sum(x21aug) as x21aug,
		sum(x21sep) as x21sep,
		sum(x21oct) as x21oct, 
		sum(x21nov) as x21nov, 
		sum(x21dec) as x21dec,
		
		sum(x22jan) as x22jan, 
		sum(x22feb) as x22feb
		
FROM 


	(SELECT *
	FROM 

		(
		SELECT borderpoint, entry, "exit",
			(CASE
					WHEN "exit" = 'Poland' THEN x19jan * -1
					WHEN "entry" = 'Poland' THEN x19jan * 1
					END
			) AS "x19jan",

			(CASE
				WHEN "exit" = 'Poland' THEN x19feb * -1
				WHEN "entry" = 'Poland' THEN x19feb * 1
				END 
			) AS "x19feb",

			(CASE
				WHEN "exit" = 'Poland' THEN x19mar * -1
				WHEN "entry" = 'Poland' THEN x19mar * 1
				END 
			) AS "x19mar",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x19apr * -1
				WHEN "entry" = 'Poland' THEN x19apr * 1
				END 
			) AS "x19apr",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x19may * -1
				WHEN "entry" = 'Poland' THEN x19may * 1
				END 
			) AS "x19may",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x19jun * -1
				WHEN "entry" = 'Poland' THEN x19jun * 1
				END 
			) AS "x19jun",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x19jul * -1
				WHEN "entry" = 'Poland' THEN x19jul * 1
				END 
			) AS "x19jul",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x19aug * -1
				WHEN "entry" = 'Poland' THEN x19aug * 1
				END
			 
			) AS "x19aug",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x19sep * -1
				WHEN "entry" = 'Poland' THEN x19sep * 1
				END 
			) AS "x19sep",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x19oct * -1
				WHEN "entry" = 'Poland' THEN x19oct * 1
				END 
			) AS "x19oct",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x19nov * -1
				WHEN "entry" = 'Poland' THEN x19nov * 1
				END 
			) AS "x19nov",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x19dec * -1
				WHEN "entry" = 'Poland' THEN x19dec * 1
				END 
			) AS "x19dec",
			
			(CASE
					WHEN "exit" = 'Poland' THEN x20jan * -1
					WHEN "entry" = 'Poland' THEN x20jan * 1
					END
			) AS "x20jan",

			(CASE
				WHEN "exit" = 'Poland' THEN x20feb * -1
				WHEN "entry" = 'Poland' THEN x20feb * 1
				END 
			) AS "x20feb",

			(CASE
				WHEN "exit" = 'Poland' THEN x20mar * -1
				WHEN "entry" = 'Poland' THEN x20mar * 1
				END 
			) AS "x20mar",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x20apr * -1
				WHEN "entry" = 'Poland' THEN x20apr * 1
				END 
			) AS "x20apr",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x20may * -1
				WHEN "entry" = 'Poland' THEN x20may * 1
				END 
			) AS "x20may",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x20jun * -1
				WHEN "entry" = 'Poland' THEN x20jun * 1
				END 
			) AS "x20jun",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x20jul * -1
				WHEN "entry" = 'Poland' THEN x20jul * 1
				END 
			) AS "x20jul",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x20aug * -1
				WHEN "entry" = 'Poland' THEN x20aug * 1
				END
			 
			) AS "x20aug",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x20sep * -1
				WHEN "entry" = 'Poland' THEN x20sep * 1
				END 
			) AS "x20sep",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x20oct * -1
				WHEN "entry" = 'Poland' THEN x20oct * 1
				END 
			) AS "x20oct",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x20nov * -1
				WHEN "entry" = 'Poland' THEN x20nov * 1
				END 
			) AS "x20nov",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x20dec * -1
				WHEN "entry" = 'Poland' THEN x20dec * 1
				END 
			) AS "x20dec",
			
			(CASE
					WHEN "exit" = 'Poland' THEN x21jan * -1
					WHEN "entry" = 'Poland' THEN x21jan * 1
					END
			) AS "x21jan",

			(CASE
				WHEN "exit" = 'Poland' THEN x21feb * -1
				WHEN "entry" = 'Poland' THEN x21feb * 1
				END 
			) AS "x21feb",

			(CASE
				WHEN "exit" = 'Poland' THEN x21mar * -1
				WHEN "entry" = 'Poland' THEN x21mar * 1
				END 
			) AS "x21mar",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x21apr * -1
				WHEN "entry" = 'Poland' THEN x21apr * 1
				END 
			) AS "x21apr",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x21may * -1
				WHEN "entry" = 'Poland' THEN x21may * 1
				END 
			) AS "x21may",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x21jun * -1
				WHEN "entry" = 'Poland' THEN x21jun * 1
				END 
			) AS "x21jun",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x21jul * -1
				WHEN "entry" = 'Poland' THEN x21jul * 1
				END 
			) AS "x21jul",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x21aug * -1
				WHEN "entry" = 'Poland' THEN x21aug * 1
				END
			 
			) AS "x21aug",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x21sep * -1
				WHEN "entry" = 'Poland' THEN x21sep * 1
				END 
			) AS "x21sep",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x21oct * -1
				WHEN "entry" = 'Poland' THEN x21oct * 1
				END 
			) AS "x21oct",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x21nov * -1
				WHEN "entry" = 'Poland' THEN x21nov * 1
				END 
			) AS "x21nov",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x21dec * -1
				WHEN "entry" = 'Poland' THEN x21dec * 1
				END 
			) AS "x21dec",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x22jan * -1
				WHEN "entry" = 'Poland' THEN x22jan * 1
				END 
			) AS "x22jan",
			
			(CASE
				WHEN "exit" = 'Poland' THEN x22feb * -1
				WHEN "entry" = 'Poland' THEN x22feb * 1
				END 
			) AS "x22feb"
		

		FROM
			borderpoints19_22
		) as subquery1

	WHERE "x19jan" IS NOT NULL) as subquery2