Transatlantic Cable Data

	A	B	C	D	E	H	I	J	K
1	Year	Source	Channels	MHz	Mbps	Average microseconds per tweet	Rate of Progress since 1956	Discontinuity

2	1956	https://en.wikipedia.org/wiki/Transatlantic_communications_cable	36	0.144	2.30E+00	4.25E+02
3	1959		48	0.192	3.07E+00	3.19E+02	1.100642416		3.07E+00
4	1961		80	0.32	5.12E+00	1.91E+02	1.173160676	3.326980782
5	1963		138	0.552	8.83E+00	1.11E+02	1.211624604	1.414037542
6	1970		845	3.38	5.41E+01	1.81E+01	1.252843226	2.439795039
7	1974		1840	7.36	1.18E+02	8.32E+00	1.244278273	-0.5477793081
8	1976		4000	16	2.56E+02	3.83E+00	1.265574963	1.553002394
9	1988		40000	160	2.56E+03	3.83E-01	1.245030302	-2.22367016
10	1992		80000	320	5.12E+03	1.91E-01	1.238700518	-0.8372531657
11	1996				3.00E+04	3.27E-02	1.267260708	4.259456774
12	1998				1.20E+05	8.17E-03	1.295097162	3.852858766
13	2000.666667				6.40E+05	1.53E-03	1.323956831	3.806917519
14	2001.221918	https://en.wikipedia.org/wiki/TAT-14			3.20E+06	3.06E-04	1.367205689	5.179942667
15	2001.45				5.10E+06	1.92E-04	1.379132173	1.262122111
16	2009	https://www.lightreading.com/optical/hibernia-offers-cross-atlantic-40g/d/d-id/669953			1.02E+07	9.65E-05	1.334646493	-5.405939088
17	2016				4.00E+07	2.45E-05	1.320260485	-2.252579663	4.00E+07
18	2018.083333				1.60E+08	6.13E-06	1.337544547	2.90640528
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21	1965		138	0.552	8.83E+00
22	1978		4000	16	2.56E+02
23	1989				4.20E+02
24	1992				1.13E+03
25	1993				1.13E+03
26	1994				5.00E+00
27	2001.25				3.20E+05
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30	bits per ASCII character	7
31	Number of characters per message	140
32	Transatlantic distance (nautical miles)	1651
33	1 hour in microseconds	3.60E+09
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