Table 3: XEST X-ray variability statistics for different types of young stars in the broad, soft, and hard bands derived with the MLB technique. For each energy band the number of detected sources, the number of variable sources, and the number fraction of variables are given; see text for details.

		Broad band: 0.3-7.8 keV			Soft band: 0.3-1.0 keV			Hard band: 1.0-7.8 keV
Object	Type	Number		Fraction	Number		Fraction	Number		Fraction
type	identifier	detected	variable	variable	studied	variable	variable	studied	variable	variable
Protostar	1	9	4	44%	7	0	0%	9	4	44%
cTTS	2	52	28	54%	50	9	18%	52	27	52%
wTTS	3	51	26	51%	51	19	37%	51	29	57%
Brown dwarf	4	8	1	13%	7	0	0%	7	0	0%
HAeBe	5	2	2	100%	2	2	100%	2	1	50%
Unknown	9	4	4	100%	0	0	-	0	0	-
Total		126	65	52%	117	30	26%	121	61	50%