# Effort Normalized Relative Frequency of Euechinoidea
# Data Use Policy: http://dsg.mbari.org/dsg/datause
Depth [meters]	Effort Normalized Relative Frequency
25.0	0.000841862483
75.0	0.000963220758
125.0	0.000495020735
175.0	0.007438458074
225.0	0.025851758561
275.0	0.017793366481
325.0	0.040076600451
375.0	0.069791487629
425.0	0.039885864376
475.0	0.00973937883
525.0	0.011800850819
575.0	0.051366147802
625.0	0.027847371614
675.0	0.015017676483
725.0	0.004564765077
775.0	0.007877422506
825.0	0.003341307601
875.0	0.002484774852
925.0	0.002206079699
975.0	0.004395572235
1025.0	0.005950300394
1075.0	0.007105170904
1125.0	0.008328963055
1175.0	0.006733586631
1225.0	0.004805328998
1275.0	0.003392183942
1325.0	0.004691312547
1375.0	0.008120551741
1425.0	0.002078674331
1475.0	0.000896835577
1525.0	0.004922447933
1575.0	0.00094089614
1625.0	0.000076162119
1675.0	0.000193732443
1725.0	0.001789948384
1775.0	0.001158583645
1825.0	0.000238085602
1875.0	0.001214288554
1925.0	0.000815713811
1975.0	0.000116960118
2025.0	0.000738165623
2075.0	0.001036858289
2125.0	0.000784312297
2175.0	0.000146128393
2225.0	0.000882292903
2275.0	0.000647176584
2325.0	0.001047740506
2375.0	0.000850945109
2425.0	0.000767274226
2475.0	0.001178542723
2525.0	0.002178743523
2575.0	0.005029320892
2625.0	0.000229504277
2675.0	0.004176609906
2725.0	0.000659964063
2775.0	0.001164742115
2825.0	0.001602507723
2875.0	0.00721824878
2925.0	0.001663506377
2975.0	0.003144841113
3025.0	0.004085589003
3075.0	0.002810524199
3125.0	0.000818141015
3175.0	0.014468222667
3225.0	0.003906586096
3275.0	0.028399845751
3325.0	0.00460621226
3375.0	0.002004388699
3425.0	0.035053227491
3475.0	0.126032291751
3525.0	0.1181823079
3575.0	0.012985394575
3625.0	0.013270750723
3675.0	0.012033269457
3725.0	0
3775.0	0.007524645756
3825.0	0
3875.0	0.051096999865
3925.0	0.020980155788
3975.0	0.099245307646