Estadística sobre Actividades en I+D en el Sector Empresas
Sector de empresas: Gastos internos en I+D
Gastos en terrenos y edificios para  I+D por rama de actividad  (CNAE-74) y años.
Unidades: miles de euros

,2001,2000,1999,1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1981,1980,1979,1978,
Total,106.539,58.550,40.768,63.299,41.097,..,37.864,..,22.778,35.285,43.153,41.229,35.610,33.771,35.922,13.523,9.869,9.177,10.734,6.509,2.494,5.205,7.525,5.938,
Agricultura,829,2.302,2.062,7.326,2.801,..,1.707,..,1.376,2.711,805,667,1.172,3.426,5.151,1.905,114,126,0,6,54,24,12,0,
Energía y agua,369,10.981,608,397,0,..,102,..,132,980,1.989,4.760,5.601,5.211,15.518,150,817,361,409,391,150,30,96,150,
Extractivas y químicas,17.789,11.597,11.754,6.449,8.763,..,7.182,..,7.416,12.164,14.989,14.490,11.912,8.600,6.196,4.171,3.270,2.488,1.208,1.695,1.292,1.322,1.310,1.052,
Manufacturas metálicas,9.784,13.077,5.072,18.054,10.704,..,7.957,..,5.686,13.697,19.184,11.185,8.276,7.068,5.812,6.202,4.081,3.059,2.711,1.845,469,1.274,595,228,
Otras manufacturas,3.361,4.687,8.940,26.330,4.646,..,2.092,..,4.862,1.593,1.370,3.312,4.345,4.285,1.767,721,1.226,1.839,733,1.010,168,2.188,4.261,3.510,
Construcción,48,1.242,3,66,6,..,..,..,30,228,90,523,..,18,78,6,..,..,..,..,144,..,..,..,
Comercio y hostelería,354,171,293,102,78,..,889,..,42,234,..,..,..,..,..,..,..,..,..,..,..,90,6,6,
Transportes y comunicaciones,4.843,4.424,5.359,445,3.522,..,2.536,..,..,18,..,204,18,..,..,..,0,186,5.517,1.268,90,12,998,841,
Financieras y seguros,8.889,5.863,4.611,4.081,10.398,..,15.091,..,2.338,619,1.340,703,1.947,980,1.190,246,301,1.106,126,174,108,222,168,150,
Otros servicios,60.273,4.206,2.065,48,180,..,307,..,896,3.041,3.384,5.385,2.338,4.183,210,120,60,12,30,120,18,42,78,0,
Notas:
Desde 1993 incluido, la correspondencia entre CNAE-74 y CNAE-93 se  publica en el anexo 1
Fuente: Instituto Nacional de Estadística