1   Number of holdings with green-houses 1 and green-house area, by county and size of green-houses. 1979, 1985, 1989 and 1999*
  Holdings with
green-housesl
Number of green-housesl Area of green-housesl mē
  Totall Heated green-
houses
Unheated
green-
houses
Totall Heated green-
houses
Unheated green-
houses
The whole country              
1979 1 534 5 623 .. .. 1 945 389 1 819 340 126 049
1985 1 310 4 599 3 861 738 1 900 775 1 766 510 134 265
1989 1 270 4 485 3 693 792 2 045 731 1 891 495 154 236
1999* 772 2 727 2 109 618 1 634 710 1 488 766 145 944
County              
Østfold 48 174 141 33 88 585 80 320 8 265
Akershus og Oslo 46 242 206 36 148 801 141 050 7 751
Hedmark 33 100 80 20 50 363 45 930 4 433
Oppland 26 82 49 33 33 951 24 012 9 939
Buskerud 70 260 229 31 210 419 200 766 9 653
Vestfold 65 249 204 45 174 080 158 065 16 015
Telemark 12 51 26 25 29 963 25 876 4 087
Aust-Agder 20 83 66 17 45 685 41 961 3 724
Vest-Agder 28 100 64 36 38 330 30 900 7 430
Rogaland 214 604 525 79 514 635 484 790 29 845
Hordaland 55 211 179 32 107 909 101 399 6 510
Sogn og Fjordane 13 40 15 25 10 170 6 900 3 270
Møre og Romsdal 37 135 106 29 56 709 49 454 7 255
Sør-Trøndelag 10 34 22 12 10 790 8 470 2 320
Nord-Trøndelag 42 171 104 67 70 675 59 146 11 529
Nordland 33 119 61 58 27 850 19 290 8 560
Troms 15 58 26 32 12 450 8 870 3 580
Finnmark 5 14 6 8 3 345 1 567 1 778
Area of green-houses              
 300- 999 mē 301 722 429 293 179 930 129 931 49 999
1000-1999 mē 221 687 525 162 298 601 257 775 40 826
2000-4999 mē 188 832 692 140 553 122 505 263 47 859
5000 mē and more 62 486 463 23 603 057 595 797 7 260
1  Comprise holdings and green-housearea at holdings with at least 300 mē green-housearea.

Explanation of symbols