Duration of protogenesic interval (months)	Duration of interval between 1st and 2nd birth (months)	Total
Total	Total	3.774.637
Total	From 0 to 7 months	41.253
Total	From 8 to 11 months	50.154
Total	From 12 to 23 months	740.800
Total	From 24 to 35 months	684.422
Total	From 36 to 47 months	673.798
Total	From 48 to 59 months	547.829
Total	60 and over	1.036.380
Total	Average	47,38
Negative	Total	172.392
Negative	From 0 to 7 months	3.515
Negative	From 8 to 11 months	1.647
Negative	From 12 to 23 months	25.397
Negative	From 24 to 35 months	29.253
Negative	From 36 to 47 months	21.456
Negative	From 48 to 59 months	24.837
Negative	60 and over	66.287
Negative	Average	57,21
From 0 to 7 months	Total	640.410
From 0 to 7 months	From 0 to 7 months	2.348
From 0 to 7 months	From 8 to 11 months	11.428
From 0 to 7 months	From 12 to 23 months	171.044
From 0 to 7 months	From 24 to 35 months	105.890
From 0 to 7 months	From 36 to 47 months	73.173
From 0 to 7 months	From 48 to 59 months	81.801
From 0 to 7 months	60 and over	194.726
From 0 to 7 months	Average	48,51
From 8 to 11 months	Total	803.670
From 8 to 11 months	From 0 to 7 months	7.301
From 8 to 11 months	From 8 to 11 months	9.276
From 8 to 11 months	From 12 to 23 months	176.393
From 8 to 11 months	From 24 to 35 months	133.313
From 8 to 11 months	From 36 to 47 months	169.676
From 8 to 11 months	From 48 to 59 months	117.697
From 8 to 11 months	60 and over	190.013
From 8 to 11 months	Average	45,85
From 12 to 23 months	Total	1.137.434
From 12 to 23 months	From 0 to 7 months	7.573
From 12 to 23 months	From 8 to 11 months	18.866
From 12 to 23 months	From 12 to 23 months	211.172
From 12 to 23 months	From 24 to 35 months	207.039
From 12 to 23 months	From 36 to 47 months	221.910
From 12 to 23 months	From 48 to 59 months	168.948
From 12 to 23 months	60 and over	301.926
From 12 to 23 months	Average	46,16
From 24 to 35 months	Total	451.429
From 24 to 35 months	From 0 to 7 months	6.906
From 24 to 35 months	From 8 to 11 months	..
From 24 to 35 months	From 12 to 23 months	74.396
From 24 to 35 months	From 24 to 35 months	97.405
From 24 to 35 months	From 36 to 47 months	70.271
From 24 to 35 months	From 48 to 59 months	67.144
From 24 to 35 months	60 and over	135.306
From 24 to 35 months	Average	47,74
From 36 to 47 months	Total	263.478
From 36 to 47 months	From 0 to 7 months	1.164
From 36 to 47 months	From 8 to 11 months	1.420
From 36 to 47 months	From 12 to 23 months	32.415
From 36 to 47 months	From 24 to 35 months	48.708
From 36 to 47 months	From 36 to 47 months	69.557
From 36 to 47 months	From 48 to 59 months	43.674
From 36 to 47 months	60 and over	66.541
From 36 to 47 months	Average	48,58
From 48 to 59 months	Total	88.622
From 48 to 59 months	From 0 to 7 months	1.919
From 48 to 59 months	From 8 to 11 months	3.634
From 48 to 59 months	From 12 to 23 months	14.811
From 48 to 59 months	From 24 to 35 months	21.456
From 48 to 59 months	From 36 to 47 months	8.855
From 48 to 59 months	From 48 to 59 months	12.688
From 48 to 59 months	60 and over	25.259
From 48 to 59 months	Average	45,98
60 and over	Total	217.201
60 and over	From 0 to 7 months	10.528
60 and over	From 8 to 11 months	3.883
60 and over	From 12 to 23 months	35.172
60 and over	From 24 to 35 months	41.358
60 and over	From 36 to 47 months	38.899
60 and over	From 48 to 59 months	31.040
60 and over	60 and over	56.322
60 and over	Average	46,71