NewLund; sanriku cutof; primaries include  those below cutoff
at E>8 GeV,new Lund is employed.
file name       depth		# of 1ry
ndata5g		5 g/cm^2	8x10^4    accepted ones ~ 8500
ndata10g	10		//
ndata20g	20		//
ndata40g	40		4x10^4
ndata60g 	60		//
ndata80g	80		//
ndata100g	100		//
ndata125g	125		6x10^4
ndata170g	170		//
ndata230g	230		8x10^4
ndata313g	313		//
ndata417g	417		//
ndata550g	550		8x10^4
ndata735g	735		8x10^4
ndata1000g	1000		8x10^4



