Table 4.8: Market Concentration Ratios by Ito-Fukao Industry Classification: 1996 and 2001,,,,,
(Note: Excluding public establishments.),,,,,

Ito-Fukao Industry Classification,,2001,1996 (Estimated value),2001,1996 (Estimated value)
Ito-Fukao Industry Classification,Industry Name,Herfindahl index,Herfindahl index,Top 4-firm market concentration ratio (%),Top 4-firm market concentration ratio (%)
101,Agriculture (excl. agricultural services),9.94,10.04,4.1,4.27
102,Forestry (excl. agricultural services),23.02,20.85,5.24,3.97
103,Fishery,11.61,10.96,2.69,2.78
104,Mining,26.2,29.29,8.16,8.75
201,Livestock products,43.46,47.73,9.31,10.25
202,Seafood products,5.48,6.04,2.19,2.69
203,Flour & grain mill products,75.77,151.65,13.92,18.31
204,Miscellaneous food products,17.83,14.48,5.35,4.84
205,Beverages & tobacco,72.47,85.38,12.41,14.82
206,Prepared feed & fertilizers,34.58,36.23,6.26,6.68
207,Reeling plants & spinning mills,255.23,210.61,26.56,22.79
208,Woven & knitted fabrics,9.55,7.43,3.56,3.17
209,Dyed & finished textiles,23.02,15.91,6.68,5.13
210,Other textile mill products,10.78,7.98,4.41,3.64
211,Textile outer garments,2.75,2.12,1.51,1.37
212,Apparel,5.85,3,3.02,1.36
213,Sawmills & millwork,5.65,4.97,2.69,2.47
214,Wooden containers & wood,5.34,5.08,1.52,1.71
215,Furniture & fixtures,4.5,3.5,1.98,1.86
216,Pulp & paper mills ,139.09,158.39,19.19,20.91
217,Paper products,9.12,6.93,3.5,2.85
218,Newspaper industry,248.9,172.07,25.22,20.88
219,Publishing industry,24.04,27.25,6.23,6.59
220,Printing,8.79,9.23,4.47,4.6
221,Industrial inorganic chemicals,69.46,71.37,10.62,10.76
222,Industrial organic chemicals,146.58,141.81,17.39,16.89
223,Oil products & detergents,109.61,153.11,15.68,20.35
224,Drugs & medicines,74.24,75.73,10.46,11.64
225,"Toilet preparations, etc.",115.84,131.23,15.22,16.08
226,Petroleum refining,605.3,544.12,40.5,38.56
227,Petroleum & coal products,611.32,130.41,30.66,17.76
228,Plastic products,8.05,6.03,3.71,2.81
229,Tires & inner tubes,2132.86,1738.31,78.16,74
230,Rubber & plastic footwear,28.82,28.72,7.3,6.96
231,Leather products & fur skins,6.03,5.17,1.99,2.04
232,Glass & glass products,167.09,187.44,20.88,22.46
233,Cement & cement products,8.12,8.23,2.95,3.32
234,"Clay, pottery & stone products",25.79,26.49,8.55,8.38
235,Blast furnace & basic steel,378.61,364.72,33.95,32.63
236,Iron & steel,18.68,17.35,5.28,5.37
237,Nonferrous metals,188.71,244.73,20.53,24.18
238,Nonferrous rolling & casting,127.68,106.43,19.38,17.52
239,Fabricated structural metal,16.77,12.95,6.22,5.76
240,Miscellaneous metal work,3.39,4.43,1.98,2.75
241,Metal working machinery,19.18,19.75,5.38,5.69
242,Special industry machinery,25.77,26.32,6.98,7.09
243,Office & household machines,61.41,52.35,10.86,9.91
244,General industrial machinery,18.13,19.98,6.2,6.63
245,Electrical industrial machinery,71.76,72.27,14.46,15.21
246,Household electric appliances,273,244.74,28.95,24.38
247,Communication equipment,117.66,110.6,15.92,15.06
248,Electric equipment & computers,122.49,103.9,16.29,15.14
249,Electronic parts & devices,32.24,39.53,8.52,9.64
250,Miscellaneous electric equipment,57.79,51.34,10.48,9.13
251,Motor vehicles & parts,100.21,99.6,14.97,15.84
252,Miscellaneous transport equipment,109.55,163.03,17.53,20.63
253,Medical instruments,82.62,92.01,13.22,15.13
254,Optical instruments & lenses,65.82,154.97,10.59,19.4
255,"Watches, clocks & parts",420.07,202,34.65,22.48
256,Measuring & analytical instruments,51.71,46.12,11.13,10.1
257,Ordnance & accessories,4762.97,1714.85,97.24,76.76
258,Miscellaneous manufacturing,7.91,9.12,3.57,3.85
301,Construction and civil engineering,0.82,0.78,0.99,0.93
302,Electricity,1440.09,1390.34,65.63,64.22
303,Gas supply,1315.84,1296.06,58.69,59.97
304,Steam and hot water supply,197.66,234.16,17.53,20.24
305,Water supply,189.22,246.47,17.44,24.25
306,Sewerage systems,267.92,322.81,23.31,29.32
307,Sanitary services,2.67,3.06,1.08,1.37
308,Wholesale trade,1.05,1.02,0.9,0.79
309,Retail trade,3.23,2.04,2.73,2.11
310,Financial intermediary services,35.44,32.72,7.39,6.51
311,Life insurance,956.67,844.89,54.05,49.76
312,Casualty insurance,817.44,610.72,48.43,37.32
313,Other insurance services,4.43,5.87,2,2.83
314,Real estate,1.33,1.11,1.11,0.89
315,Railway transportation,1120.53,994.37,52.82,52.6
316,Road passenger transportation,8.65,8.61,2.86,2.91
317,Road freight transportation,48.72,34.76,11.42,9.88
318,Water transportation,20.18,24.09,5.49,6.01
319,Air transportation,1123.72,1262.21,56.77,59.88
320,Storage facility services,13.92,13.14,3.71,3.8
321,Supporting services for transportation,12.93,17.37,5.29,6.49
322,Postal services,4.49,7.46,2.01,3.67
323,Telecommunications,537.73,33.92,38.06,7.33
324,Broadcasting,172.99,301.41,20.57,27.66
325,Education,3.63,3.38,1.75,1.63
326,Research institutes (natural sciences),118.25,66.11,17.49,10.81
327,Research institutes (social sciences & humanities),143.14,397.3,15.39,31.78
328,Medical services,0.76,0.87,0.47,0.59
329,Health and hygiene,43.83,48.21,5.73,6.9
330,Private non-profit organization service.,0.67,0.65,0.65,0.48
331,Advertising,62.49,23.36,11.8,6.7
332,Computer programming & software,15.91,19.4,5.55,6.36
333,Information services,21.35,17.62,5.52,4.47
334,Goods & equipment rental & leasing,7.95,6.87,3.22,2.8
335,Automobile renting,83.06,87.1,12.62,13.35
336,Automobile repairing,0.67,0.65,0.73,0.72
337,Machine repairing,19.2,22.13,5.53,5.87
338,Building maintenance services,12.19,12.24,4.45,4.16
339,Legal & accounting services,2.31,1.11,2.7,1.59
340,Civil engineering & construction services,3.01,2.67,1.52,1.36
341,Personnel supply services,52.48,537.13,10.06,28.78
342,Other business services,10.26,6.06,4.95,3.6
343,Amusement & recreation services,7.95,3.82,3.73,2.53
344,Eating and drinking places,8.17,3.93,4.42,2.96
345,Hotels and lodging places,4.13,3.08,2.38,2
346,Individual education facilities,5.86,4.54,3.28,2.85
347,Other personal services,1.3,0.58,1.51,0.82
348,Agricultural services,2.42,2.81,1.05,1.36
349,Social insurance & welfare,0.84,0.93,0.67,0.61
350,Unclassified services,89.91,81.98,12.02,10.9