"Year","Core sample","All industries","4*minimum threshold"
1937,0.5397146,0.4079809,0.5397146,0.8640399,0.9957737,0.8640399
1938,0.5808181,0.432937,0.5808181,0.8905825,1.038464,0.8905825
1939,0.5509457,0.4035007,0.5509457,0.8789834,1.026428,0.8789834
1940,0.5457117,0.4038507,0.5457117,0.841121,0.982982,0.841121
1941,0.5447762,0.4038052,0.5447762,0.8679681,1.008939,0.8679681
1942,0.5932152,0.4172781,0.5932152,0.9459035,1.121841,0.9459035
1943,0.550721,0.3965702,0.550721,0.9399607,1.094111,0.9399607
1944,0.5112186,0.3728306,0.5112186,0.8903152,1.028703,0.8903152
1945,0.5368962,0.3761395,0.5368962,0.9658502,1.126607,0.9658502
1946,0.4882896,0.3510328,0.4882896,0.8741666,1.011423,0.8741666
1947,0.4385185,0.3196273,0.4385185,0.8563902,0.9752814,0.8563902
1948,0.4194394,0.3137015,0.4194394,0.82327,0.9290079,0.82327
1949,0.4279552,0.3264948,0.4279552,0.8142664,0.9157268,0.8142664
1950,0.4116428,0.3063216,0.4116428,0.8387353,0.9440566,0.8387353
1951,0.4446120,0.3366555,0.4339241,0.811742,0.884878,0.7876094
1952,0.4252568,0.3252062,0.4160071,0.8039195,0.8641,0.773299
1953,0.4347071,0.3359504,0.4203342,0.7940093,0.844212,0.7598282
1954,0.4339277,0.3244324,0.4201599,0.818835,0.8855948,0.7898673
1955,0.4585889,0.3373386,0.4382832,0.867544,0.9231729,0.8222283
1956,0.4534473,0.3411376,0.4356734,0.8333115,0.8811823,0.7866465
1957,0.4810557,0.3497216,0.446662,0.8197602,0.8917939,0.7948535
1958,0.490844,0.3555640,0.4584335,0.8416127,0.9152052,0.8123357
1959,0.4829812,0.3639269,0.460187,0.8229063,0.8904083,0.7941482
1960,0.4974579,0.3634719,0.4574581,0.8227463,0.8813942,0.787408
1961,0.4917275,0.3635129,0.4613254,0.8176282,0.897826,0.8000135
1962,0.5002691,0.3810847,0.471785,0.8008968,0.8711226,0.7804223
1963,0.5077738,0.3834832,0.4754813,0.8038569,0.8772779,0.7852798
1964,0.5043271,0.386388,0.4773237,0.7909724,0.8557101,0.7647744
1965,0.5012481,0.3843925,0.4774388,0.7872772,0.8556125,0.7625662
1966,0.5029968,0.3812515,0.4796445,0.7902542,0.8734298,0.7750368
1967,0.5006652,0.3831865,0.4786942,0.7763539,0.851747,0.7562393
1968,0.4976277,0.3799273,0.4760698,0.7642148,0.8422271,0.7460846
1969,0.5018675,0.3866399,0.4841529,0.7767033,0.8597437,0.7622306
1970,0.5053572,0.3906672,0.4882455,0.7736655,0.8565035,0.7589252
1971,0.4996237,0.3921447,0.491656,0.7808004,0.8693303,0.769819
1972,0.5227668,0.4020792,0.5094099,0.7855661,0.8927461,0.7854154
1973,0.5193669,0.4061469,0.5139613,0.7945537,0.9000524,0.7922381
1974,0.5212312,0.409947,0.5166155,0.797574,0.902483,0.7958145
1975,0.5274222,0.4092088,0.5245085,0.8030035,0.9262862,0.8109864
1976,0.5378159,0.4170581,0.5327092,0.8023634,0.9283802,0.8127291
1977,0.5556278,0.4380788,0.5532857,0.7941067,0.9232952,0.8080883
1978,0.5608836,0.4566407,0.5607721,0.7595386,0.8739301,0.7697987
1979,0.5604006,0.4540347,0.5558625,0.75143,0.8571216,0.7552938
1980,0.5661348,0.4595467,0.5654423,0.7566222,0.8677952,0.7618996
1981,0.5685488,0.4636777,0.5698898,0.7559576,0.8728774,0.7666653
1982,0.5691544,0.4668783,0.5816818,0.7707759,0.8994081,0.7846046
1983,0.5740222,0.4711164,0.5887188,0.7799509,0.912509,0.7949066
1984,0.5779738,0.4749663,0.5934114,0.781305,0.9166727,0.7982276
1985,0.5778014,0.4777368,0.5963427,0.7839477,0.9209065,0.8023006
1986,0.5768666,0.4773293,0.5963629,0.7866871,0.925004,0.8059704
1987,0.5737551,0.4762082,0.5930798,0.7822376,0.9152386,0.798367
1988,0.5801673,0.4796251,0.597331,0.7792965,0.910133,0.7924271
1989,0.5813575,0.4817531,0.5970472,0.7739078,0.9027027,0.7874086
1990,0.5817401,0.4806803,0.595245,0.7680375,0.8920618,0.7774971
1991,0.5855237,0.4829755,0.6016101,0.7708964,0.8977677,0.7791332
1992,0.5893278,0.4853347,0.6071523,0.7693232,0.8982944,0.7764769
1993,0.5902381,0.4896211,0.6096256,0.7657613,0.891875,0.7718705
1994,0.5914533,0.4928318,0.6116204,0.7578793,0.8817529,0.7629643
1995,0.5917329,0.4958113,0.61225,0.7516569,0.8728754,0.7564367
1996,0.590389,0.4975416,0.6106993,0.7476726,0.8647054,0.7515477
1997,0.5890042,0.4971549,0.6088306,0.7408453,0.8564226,0.7447468
1998,0.5844151,0.4985546,0.6064591,0.7298625,0.84017,0.7322655
1999,0.5836384,0.4998413,0.6062725,0.7245387,0.834332,0.7279009
2000,0.5855937,0.5012449,0.6064693,0.7175496,0.825175,0.7199506
2001,0.5874057,0.5034861,0.6098136,0.7216307,0.8330248,0.7266973
2002,0.5879736,0.5018078,0.6114384,0.7328764,0.847528,0.7378973
2003,0.5935734,0.5053495,0.6200273,0.7381184,0.858844,0.7441663
2004,0.6021237,0.5083084,0.6309551,0.7498191,0.8849925,0.7623458