# Effort Normalized Relative Frequency of shell fragment
# Data Use Policy: http://dsg.mbari.org/dsg/datause
Depth [meters]	Effort Normalized Relative Frequency
25.0	0.001890814128
75.0	0.001630044419
125.0	0.006375833569
175.0	0.002725349003
225.0	0.004636881631
275.0	0.005011385762
325.0	0.001765424154
375.0	0.002489539587
425.0	0.000570637512
475.0	0.000979042028
525.0	0.005811337929
575.0	0.010478810107
625.0	0.009341500919
675.0	0.006468086294
725.0	0.001675573199
775.0	0.019127486728
825.0	0.009181585882
875.0	0.035247128378
925.0	0.01552780641
975.0	0.010205535928
1025.0	0.009335549953
1075.0	0.001773459323
1125.0	0.006153471637
1175.0	0.003612136731
1225.0	0.009918378943
1275.0	0.028649122397
1325.0	0.039034995919
1375.0	0.008924929271
1425.0	0.011418062114
1475.0	0.006816722902
1525.0	0.010130145964
1575.0	0.091732143982
1625.0	0.040261401823
1675.0	0.011379147348
1725.0	0.003023366566
1775.0	0.019087880364
1825.0	0.019442447424
1875.0	0.002084112027
1925.0	0.000127538857
1975.0	0.004416310877
2025.0	0.031166056525
2075.0	0.000219332517
2125.0	0.000194515208
2175.0	0.00300281862
2225.0	0.003025246223
2275.0	0.010441471306
2325.0	0.006189934806
2375.0	0.010115294873
2425.0	0.000331103976
2475.0	0.000385287736
2525.0	0.000206184044
2575.0	0.000388945663
2625.0	0.03466351613
2675.0	0.049271397673
2725.0	0.011542873199
2775.0	0
2825.0	0.000847468879
2875.0	0.13217078108
2925.0	0.005569584233
2975.0	0
3025.0	0.011617098657
3075.0	0.000129576208
3125.0	0.021435461678
3175.0	0.000841443704
3225.0	0
3275.0	0.00097133435
3325.0	0.002412295582
3375.0	0.005299996434
3425.0	0.009696549064
3475.0	0.006552273301
3525.0	0.005856966903
3575.0	0
3625.0	0.008590145833
3675.0	0.148403917606
3725.0	0
3775.0	0
3825.0	0
3875.0	0
3925.0	0
3975.0	0