summary for counts

keyletters

keyletters	type	count
T	transfer line	1
B	block valve	7
E	external	6
D	data curve	8
D2	2d data curve	1
NO	node	9
SP	span	1
ST	station	2
FL	fluid	3

knots and unknowns

description	count
pipe knots	6
matrix unknowns	33