ME1 and ME2: OUTER UNION

IDnum	Jobcode	Salary	Bonus	IDnum	Jobcode	Salary
1400	ME1	29769	587			.
1403	ME1	28072	342			.
1120	ME1	28619	986			.
1120	ME1	28619	986			.
		.	.	1653	ME2	35108
		.	.	1782	ME2	35345
		.	.	1244	ME2	36925