Sample size	Percent missing	DBI				Mean imputation
		PRandom>PGold		PRandom<PGold		PMean>PGold		PMean<PGold
		Count	Percent	Count	Percent	Count	Percent	Count	Percent
50	10	509	50.9	491	49.1	390	39.0	610	61.0
	20	454	45.4	546	54.6	320	32.0	680	68.0
	30	482	48.2	518	51.8	279	27.9	721	72.1
100	10	483	48.3	517	51.7	353	35.3	647	64.7
	20	471	47.1	529	52.9	271	27.1	729	72.9
	30	471	47.1	529	52.9	188	18.8	812	81.2
150	10	500	50.0	500	50.0	310	31.0	690	69.0
	20	502	50.2	498	49.8	230	23.0	770	77.0
	30	488	48.8	512	51.2	161	16.1	839	83.9
200	10	487	48.7	513	51.3	281	28.1	719	71.9
	20	495	49.5	505	50.5	175	17.5	825	82.5
	30	503	50.3	497	49.7	133	13.3	867	86.7
Total		5,845	48.7	6,155	51.3	3,091	25.8	8,909	74.2