Costs of HW and SW in data processing

	A	B	C	D
1	A. worldwide computer sales as per #6
2	year	# computers sold	sales revenue in $	revenue per unit
3	1975	50,000	$60,000,000	$1,200
4	2000	134,700,000	$251,000,000,000	$1,863
5	2010	346,000,000	$321,000,000,000	$928
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7	B. software & service revenues as per #1
8	year	revenue in $	remark	SW/HW ratio
9	1975	$5,918,600,000	extrapolated	99
10	1981	$10,826,000,000	-	N/A
11	1991	$19,005,000,000	-	N/A
12	2000	$26,366,100,000	extrapolated	0.11
13	2010	$34,545,100,000	extrapolated	N/A
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15	C. Gartner IT spending as per #3
16	year	hardware	software	SW/HW ratio
17	1/1/2007	$370,000,000,000	$209,000,000,000	0.56
18	1/1/2008	$380,000,000,000	$225,000,000,000	0.59
19	1/1/2009	$317,000,000,000	$221,000,000,000	0.70
20	1/1/2010	$317,000,000,000	$231,000,000,000	0.73
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22	D. OECD: ICT spending as per #4
23	year	hardware	software	SW/HW ratio
24	2003	$323,967,000,000	$197,959,000,000	0.61
25	2004	$369,112,000,000	$228,525,000,000	0.62
26	2005	$405,586,000,000	$252,827,000,000	0.62
27	2006	$436,999,000,000	$275,174,000,000	0.63
28	2007	$465,706,000,000	$295,812,000,000	0.64
29	2008	$489,886,000,000	$311,083,000,000	0.64
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