Statistics on the Valkenburg Families

The following tables show per century:

The type of statistics.
The number of persons of whom data is available.
The calculated average.

NB Please be aware of:

The statistics on the early centuries are influenced by the limited amount of data available.
The data on the late 20th and early 21st century is influenced by the early deaths.
The data on the children of daughters is less complete than those on the children of the sons.

Old age per quarter century of date of death

Period	Married 25+ males		Married 25+ females		Unmarried 25+ males		Unmarried 25+ females		All males		All females
Period	Number	Age	Number	Age	Number	Age	Number	Age	Number	Age	Number	Age
15Q4	1	26y 04m							1	26y 04m
16Q1									4	5y 11m	3	7y 11m
16Q2	4	46y 11m	2	49y 02m	2	37y 06m	6	35y 05m	10	27y 08m	12	30y 01m
16Q3	4	60y 10m	6	54y 06m	3	44y 02m	9	45y 04m	12	31y 05m	20	38y 03m
16Q4	13	56y 04m	7	52y 04m	8	51y 05m	3	54y 07m	33	36y 08m	21	28y 03m
17Q1	18	56y 02m	20	50y 09m	13	47y 07m	5	55y 03m	54	31y 03m	46	29y 11m
17Q2	38	51y 11m	38	53y 01m	17	53y 03m	7	68y 05m	107	29y 08m	87	31y 06m
17Q3	45	57y 11m	50	59y 04m	14	48y 05m	14	42y 06m	121	29y 05m	108	33y 09m
17Q4	71	58y 10m	86	54y 09m	33	48y 07m	18	54y 01m	178	34y 03m	168	35y 07m
18Q1	133	60y 04m	136	59y 03m	50	55y 04m	71	58y 07m	302	37y 02m	311	40y 10m
18Q2	172	59y 02m	175	58y 10m	104	53y 05m	95	57y 07m	480	34y 08m	416	39y 06m
18Q3	179	59y 09m	207	58y 06m	115	56y 02m	125	56y 08m	531	34y 01m	520	38y 04m
18Q4	200	63y 01m	190	64y 07m	118	58y 06m	130	62y 02m	541	37y 06m	507	41y 06m
19Q1	208	64y 02m	238	65y 02m	121	63y 04m	138	65y 04m	525	41y 08m	539	46y 09m
19Q2	357	65y 06m	300	67y 08m	130	64y 05m	135	67y 00m	589	55y 03m	506	58y 10m
19Q3	508	69y 06m	403	72y 03m	177	68y 08m	129	71y 04m	708	67y 04m	549	69y 11m
19Q4	645	73y 08m	581	78y 01m	109	66y 08m	106	77y 01m	769	71y 07m	697	76y 11m
20Q1	529	77y 08m	633	81y 09m	112	69y 01m	121	81y 00m	643	76y 00m	757	81y 04m

Number of relations per quarter century of date of death

Period	Males		Females
Period	Number	Marriages	Number	Marriages
15Q4	1	1.00
16Q1	4	1.75
16Q2	6	1.16	5	1.00
16Q3	8	1.50	9	1.00
16Q4	14	1.14	6	1.00
17Q1	22	1.27	12	1.16
17Q2	35	1.62	27	1.25
17Q3	35	1.28	31	1.16
17Q4	51	1.49	54	1.16
18Q1	83	1.25	82	1.14
18Q2	100	1.25	85	1.17
18Q3	80	1.27	113	1.18
18Q4	96	1.28	95	1.18
19Q1	108	1.19	100	1.19
19Q2	184	1.19	134	1.08
19Q3	244	1.20	193	1.15
19Q4	322	1.17	278	1.13
20Q1	344	1.16	343	1.14

Marriage age per quarter century of date of marriage

Period	1st marriage		1st marriage		2nd marriage		2nd marriage		3rd marriage		3rd marriage
Period	Number	Male	Number	Female	Number	Male	Number	Female	Number	Male	Number	Female
15Q4			2	26y 10m
16Q1	2	22y 07m	2	21y 03m	1	27y 01m
16Q2	8	26y 06m	4	21y 10m	1	31y 09m			1	42y 08m
16Q3	14	28y 08m	13	24y 05m	2	40y 07m
16Q4	30	26y 06m	20	25y 02m	6	35y 07m	5	42y 08m	1	48y 08m
17Q1	43	26y 09m	36	26y 06m	14	40y 11m	5	35y 05m
17Q2	48	26y 05m	54	25y 05m	16	39y 02m	10	39y 08m	5	40y 00m	1	40y 07m
17Q3	62	27y 03m	64	26y 10m	12	39y 07m	8	34y 07m	1	40y 07m	2	49y 09m
17Q4	81	29y 01m	68	27y 03m	20	48y 09m	8	41y 01m	2	57y 05m
18Q1	72	27y 10m	77	27y 08m	10	42y 08m	12	32y 10m	1	47y 05m	2	44y 01m
18Q2	94	29y 01m	92	27y 06m	20	43y 06m	14	37y 06m	3	56y 11m	2	40y 03m
18Q3	119	29y 10m	131	27y 07m	32	41y 01m	20	33y 09m	7	47y 00m	6	46y 01m
18Q4	155	28y 08m	134	25y 06m	15	41y 03m	14	43y 10m	2	47y 07m	1	61y 03m
19Q1	238	28y 04m	255	25y 06m	27	41y 04m	22	37y 00m	2	41y 02m
19Q2	379	28y 05m	354	25y 10m	51	43y 10m	30	38y 01m	6	58y 09m	2	56y 09m
19Q3	504	26y 02m	416	24y 06m	57	46y 00m	32	44y 08m	2	65y 08m	2	40y 02m
19Q4	193	27y 11m	134	26y 04m	40	47y 03m	27	44y 03m	2	65y 04m	4	57y 07m
20Q1	57	32y 11m	54	30y 10m	19	50y 02m	13	52y 11m	4	66y 01m	2	48y 08m

Length and inter-marriage time of non-divorce marriages per quarter century of date of (re)marriage

Period	1st marriage		1st marriage		2nd marriage		2nd marriage		3rd marriage
Period	Number	Length	Number	Wait 1-2	Number	Length	Number	Wait 2-3	Number	Length
15Q4	6	31y 02m							1	11y 00m
16Q1	9	26y 03m	1	0y 09m	1	10y 04m
16Q2	13	23y 08m			2	22y 09m			1	16y 02m
16Q3	16	25y 11m	1	1y 02m	1	19y 09m	1	4y 09m	1	6y 09m
16Q4	42	27y 11m	4	5y 03m	12	32y 08m			1	57y 10m
17Q1	57	26y 02m	6	1y 06m	13	20y 10m
17Q2	74	27y 04m	15	3y 07m	24	19y 08m	6	1y 06m	6	9y 10m
17Q3	101	29y 00m	12	2y 01m	17	25y 05m	2	2y 02m	5	28y 00m
17Q4	140	25y 03m	19	2y 11m	30	17y 08m	1	0y 02m	1	17y 10m
18Q1	146	26y 01m	12	2y 08m	22	23y 11m	1	7y 10m	3	7y 07m
18Q2	184	22y 04m	28	2y 09m	33	17y 10m	4	0y 11m	5	18y 06m
18Q3	239	25y 11m	42	2y 01m	47	20y 10m	10	1y 06m	12	17y 06m
18Q4	272	31y 04m	26	4y 00m	28	20y 08m	3	0y 06m	3	6y 04m
19Q1	454	37y 05m	32	2y 07m	47	24y 11m	2	1y 04m	2	43y 11m
19Q2	638	39y 08m	41	4y 10m	71	24y 04m	3	2y 08m	7	20y 04m
19Q3	526	42y 02m	39	4y 02m	69	23y 02m	1	0y 03m	4	28y 00m
19Q4	63	26y 07m	16	7y 03m	40	21y 02m	3	5y 01m	4	16y 03m
20Q1	7	9y 04m	3	2y 06m	11	9y 02m	2	3y 04m	4	8y 01m

Divorce age per quarter century of date of divorce

Period

1st marriage

2nd marriage

3rd marriage

Number

Male

Number

Wife 1

Number

Male

Number

Wife 2

Number

Male

Number

Wife 3

18Q2

44y 02m

18Q3

38y 05m

36y 04m

18Q4

27y 07m

43y 03m

19Q1

39y 05m

39y 07m

19Q2

39y 08m

37y 01m

59y 06m

36y 10m

19Q3

41y 03m

35y 11m

56y 06m

37y 04m

19Q4

42y 00m

42y 11m

47y 09m

61y 10m

64y 11m

20Q1

49y 01m

45y 06m

50y 09m

67y 11m

71y 00m

Length and inter-marriage time of divorce marriages per quarter century of date of (re)marriage

Period	1st marriage		1st marriage		2n marriage		2nd marriage		3rd marriage
Period	Number	Length	Number	Wait 1-2	Number	Length	Number	Wait 2-3	Number	Length
18Q2					1	0y 04m
18Q3	2	0y 02m			1	0y 03m	1	0y 05m
18Q4	2	0y 06m			1	0y 00m
19Q1	9	2y 02m	8	2y 07m
19Q2	78	9y 01m	29	3y 08m	9	20y 05m	1	0y 02m
19Q3	87	15y 06m	41	2y 09m	15	12y 01m	1	2y 00m
19Q4	29	10y 06m	35	5y 03m	11	9y 07m	3	9y 05m	2	22y 06m
20Q1	2	7y 10m	10	11y 03m			2	20y 11m

Number of children per marriage per quarter century of date of marriage

Period	1st marriage		2nd marriage		3rd marriage		All marriages
Period	Number	Children	Number	Children	Number	Children	Number	All children
15Q3	1	7.00
15Q4	9	6.22
16Q1	13	4.92	2	5.50
16Q2	21	5.14	3	4.00
16Q3	41	4.78	2	6.50	1	4.00
16Q4	60	4.88	11	6.00	2	2.50	1	4.00
17Q1	83	5.14	12	4.25	1	4.00
17Q2	101	5.24	20	3.30	5	5.00	2	1.50
17Q3	114	5.15	14	3.85	3	3.66
17Q4	131	5.41	20	3.50	2	1.50
18Q1	126	5.10	17	4.58
18Q2	170	4.99	24	4.20	1	3.00
18Q3	217	5.84	35	4.25	3	3.66
18Q4	260	5.62	14	5.14
19Q1	434	4.52	25	3.12	1	1.00
19Q2	641	3.60	38	3.07	1	10.00
19Q3	761	2.52	37	1.67
19Q4	191	2.35	17	1.52	1	4.00

Time between marriage and birth of first child per quarter century of date of marriage

Period	1st marriage		2nd marriage		3rd marriage
Period	Number	Born after	Number	Born after	Number	Born after
15Q3	1	5y 04m
15Q4	7	1y 07m
16Q1	10	2y 00m	2	0y 11m
16Q2	19	1y 07m	2	3y 02m
16Q3	36	2y 00m	2	1y 00m	1	2y 05m
16Q4	53	1y 07m	11	1y 08m	2	5y 01m
17Q1	78	1y 02m	12	0y 09m	1	0y 03m
17Q2	98	1y 03m	19	0y 11m	4	1y 01m
17Q3	109	1y 04m	13	1y 02m	3	0y 09m
17Q4	129	0y 10m	20	1y 05m	2	1y 04m
18Q1	122	0y 11m	17	-0y 02m
18Q2	168	0y 08m	24	0y 00m	1	0y 09m
18Q3	217	0y 06m	35	0y 04m	3	0y 06m
18Q4	255	0y 08m	14	0y 05m
19Q1	427	0y 09m	23	0y 11m	1	0y 10m
19Q2	613	0y 06m	37	1y 01m	1	-22y 10m
19Q3	683	1y 09m	35	0y 00m
19Q4	225	2y 03m	20	0y 05m	1	-4y 06m
20Q1	82	0y 00m	9	-1y 01m	2	-5y 05m

Time between births of children per quarter century of date of marriage

Period	1st marriage		2nd marriage		3rd marriage
Period	Number	Time between	Number	Time between	Number	Time between
15Q3	3	1y 07m
15Q4	31	2y 06m
16Q1	44	1y 11m	9	2y 04m
16Q2	75	2y 00m	8	3y 07m
16Q3	139	2y 05m	11	1y 07m	2	1y 06m
16Q4	205	2y 02m	49	2y 01m	3	2y 08m
17Q1	321	2y 02m	39	2y 06m	3	2y 02m
17Q2	415	2y 03m	46	2y 02m	19	1y 01m
17Q3	451	2y 02m	39	2y 09m	8	2y 04m
17Q4	560	2y 04m	48	2y 04m	1	4y 02m
18Q1	503	2y 03m	57	2y 07m
18Q2	669	2y 03m	76	2y 01m	2	2y 00m
18Q3	1044	2y 01m	109	1y 10m	8	2y 10m
18Q4	1188	2y 02m	58	1y 11m
19Q1	1478	2y 06m	49	2y 05m
19Q2	1580	2y 11m	70	2y 06m	8	2y 00m
19Q3	994	3y 00m	25	3y 03m
19Q4	283	2y 11m	13	2y 11m	3	2y 08m
20Q1	67	2y 05m	7	2y 02m

Age at birth of last child per quarter century of date of marriage

Period	Father		Mother
Period	Number	Age	Number	Age
15Q4	1	48y 11m
16Q1	1	40y 10m	1	42y 03m
16Q2	3	30y 02m	2	25y 01m
16Q3	9	41y 00m	7	37y 00m
16Q4	11	39y 04m	9	38y 08m
17Q1	17	40y 08m	17	37y 08m
17Q2	44	42y 09m	38	38y 09m
17Q3	38	41y 06m	48	39y 10m
17Q4	108	43y 00m	105	38y 08m
18Q1	103	40y 03m	106	38y 03m
18Q2	152	41y 05m	153	37y 06m
18Q3	180	42y 00m	181	38y 00m
18Q4	216	40y 08m	218	37y 00m
19Q1	365	38y 04m	356	35y 06m
19Q2	535	37y 03m	525	34y 07m
19Q3	400	34y 03m	306	31y 08m
19Q4	41	34y 08m	25	30y 00m
20Q1	4	41y 01m	2	39y 07m

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