# Effort Normalized Relative Frequency of shell hash
# Data Use Policy: http://dsg.mbari.org/dsg/datause
Depth [meters]	Effort Normalized Relative Frequency
25.0	0.045809172989
75.0	0.008397685997
125.0	0.037743020679
175.0	0.065375306577
225.0	0.034370191222
275.0	0.009184414972
325.0	0.010426132934
375.0	0.03443587924
425.0	0.033024301931
475.0	0.009173155125
525.0	0.001171954631
575.0	0.00329663783
625.0	0.066931403637
675.0	0.003217216764
725.0	0.004105578424
775.0	0.034516683002
825.0	0.018365068788
875.0	0.309054489379
925.0	0.028777409465
975.0	0.013032519108
1025.0	0.03241708492
1075.0	0.016308752566
1125.0	0.035847057297
1175.0	0.003496552779
1225.0	0.001336222062
1275.0	0.002645845972
1325.0	0.006457088252
1375.0	0
1425.0	0.001073463485
1475.0	0
1525.0	0.0013647517
1575.0	0.001403696925
1625.0	0.008351375628
1675.0	0
1725.0	0.002548993823
1775.0	0.032921112382
1825.0	0.004661912373
1875.0	0
1925.0	0.001666679889
1975.0	0.00549642129
2025.0	0.003854371058
2075.0	0
2125.0	0
2175.0	0
2225.0	0.001928486227
2275.0	0
2325.0	0
2375.0	0
2425.0	0
2475.0	0.001678315503
2525.0	0.00269441649
2575.0	0.00254137418
2625.0	0
2675.0	0
2725.0	0
2775.0	0
2825.0	0
2875.0	0.029151222818
2925.0	0
2975.0	0.002955771924
3025.0	0
3075.0	0
3125.0	0
3175.0	0
3225.0	0.004505178495
3275.0	0
3325.0	0
3375.0	0
3425.0	0
3475.0	0.002088419898
3525.0	0
3575.0	0
3625.0	0.001133900684
3675.0	0.014499774568
3725.0	0
3775.0	0
3825.0	0
3875.0	0
3925.0	0
3975.0	0.00456353412