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Table 4 Descriptive statistics of industrial fields with top 10 average R&D investments (2007 ~ 2015)

From: Relation of R&D expense to turnover and number of listed companies in all industrial fields

Ranking US SIC primary code - Text description Average R&D investment
(CAGR, %)
Median Standard deviation Minimum Maximum
1 28 - Chemicals and allied products 151,884,109
(4.39)
154,019,882 16,847,820 125,179,857 176,548,957
2 36 - Electronic and other electrical equipment and components, except computer equipment 115,438,474
(3.15)
124,361,807 15,109,790 93,528,903 133,242,357
3 37 - Transportation equipment 108,119,248
(2.06)
112,322,852 10,067,455 92,306,185 119,505,243
4 73 - Business services 56,528,208
(11.19)
52,848,383 16,663,724 37,147,573 86,762,354
5 35 - Industrial and commercial machinery and computer equipment 53,895,319
(4.74)
55,258,316 6,953,883 43,909,638 63,622,179
6 38 - Measuring, analyzing and controlling instruments; photographic, medical and optical goods; watches and clocks 25,523,664
(4.05)
26,861,865 2,715,436 21,417,885 29,430,019
7 13 - Oil and gas extraction 16,497,156
(7.23)
18,152,769 3,401,947 11,045,634 19,951,396
8 48 - Communications 12,563,872
(−1.05)
12,504,317 1,080,100 10,715,087 14,265,049
9 29 - Petroleum refining and related industries 10,699,576
(8.03)
10,232,185 1,979,904 7,725,321 14,332,164
10 20 - Food and kindred products 9,180,171
(3.95)
9,860,196 1,257,921 7,231,432 10,202,145
  1. Currency unit: thousand USD
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