PET category	Number	Percentage	Percentage of total PETs	Order
Total PETs	113,982,085	NA	NA	(1)
Valid PETs after linker filtering	62,832,172	55.12% of (1)	55.12% of (1)	(2)
Uniquely Mapped same-linker PETs	56,652,543	90.16% of (2)	49.7% of (1)	(3)
Merging same same-linker PETs	28,557,235	50.41% of (3)	25.05% of (1)	(4)
Merging similar same-linker PETs	27,599,930	96.65% of (4)	24.21% of (1)	(5)
Self-ligation PETs	9,151,260	33.16% of (5)	8.03% of (1)	(6)
Inter-ligation PETs	13,013,794	47.15% of (5)	11.42% of (1)	(7)
Other PETs with short distance	5,434,876	19.69% of (5)	4.77% of (1)	(8)
Peaks from self-ligation	6,009	NA	NA	(9)
Interacting pairs	514,550	NA	NA	(10)