Month Growth rate same period previous year 1971-01-01 10.5454545454545000 1971-02-01 9.5940959409594000 1971-03-01 9.5238095238095100 1971-04-01 9.7122302158273200 1971-05-01 10.6007067137809000 1971-06-01 13.0281690140845000 1971-07-01 10.7638888888889000 1971-08-01 10.3571428571428000 1971-09-01 9.5238095238095300 1971-10-01 7.9734219269102900 1971-11-01 8.2781456953642500 1971-12-01 6.8852459016393500 1972-01-01 6.2499999999999900 1972-02-01 7.0707070707070800 1972-03-01 6.3545150501672300 1972-04-01 4.5901639344262300 1972-05-01 3.8338658146964900 1972-06-01 4.3613707165109100 1972-07-01 5.6426332288401300 1972-08-01 6.7961165048543800 1972-09-01 5.5900621118012500 1972-10-01 6.1538461538461600 1972-11-01 6.1162079510703400 1972-12-01 6.7484662576687000 1973-01-01 8.6687306501548200 1973-02-01 10.6918238993711000 1973-03-01 16.0377358490566000 1973-04-01 19.7492163009405000 1973-05-01 25.2307692307692000 1973-06-01 23.2835820895522000 1973-07-01 22.8486646884273000 1973-08-01 23.9393939393939000 1973-09-01 27.3529411764706000 1973-10-01 29.8550724637681000 1973-11-01 30.8357348703170000 1973-12-01 33.0459770114943000 1974-01-01 34.1880341880342000 1974-02-01 34.0909090909091000 1974-03-01 29.8102981029810000 1974-04-01 26.1780104712042000 1974-05-01 24.8157248157248000 1974-06-01 26.1501210653753000 1974-07-01 25.3623188405797000 1974-08-01 21.0268948655257000 1974-09-01 16.8591224018476000 1974-10-01 15.6250000000000000 1974-11-01 14.0969162995595000 1974-12-01 11.6630669546436000 1975-01-01 9.3418259023354500 1975-02-01 7.6271186440677900 1975-03-01 6.4718162839248500 1975-04-01 7.2614107883817400 1975-05-01 4.5275590551181100 1975-06-01 3.0710172744721700 1975-07-01 3.2755298651252400 1975-08-01 2.8282828282828300 1975-09-01 7.1146245059288600 1975-10-01 6.3706563706563800 1975-11-01 6.9498069498069600 1975-12-01 7.3500967117988400 1976-01-01 6.0194174757281600 1976-02-01 5.5118110236220500 1976-03-01 6.6666666666666700 1976-04-01 6.5764023210831800 1976-05-01 7.3446327683615900 1976-06-01 9.3109869646182600 1976-07-01 9.3283582089552300 1976-08-01 8.6444007858546000 1976-09-01 9.2250922509225200 1976-10-01 9.8003629764065200 1976-11-01 9.9277978339350100 1976-12-01 9.7297297297297200 1977-01-01 8.9743589743589600 1977-02-01 8.2089552238805800 1977-03-01 8.4558823529411600 1977-04-01 8.7114337568057900 1977-05-01 7.3684210526315600 1977-06-01 5.2810902896081600 1977-07-01 5.1194539249146600 1977-08-01 4.7016274864376200 1977-09-01 5.4054054054053900 1977-10-01 4.4628099173553800 1977-11-01 4.1050903119868700 1977-12-01 3.6124794745484400 1978-01-01 3.6974789915966400 1978-02-01 3.4482758620689700 1978-03-01 3.0508474576271200 1978-04-01 3.0050083472454100 1978-05-01 4.0849673202614400 1978-06-01 4.2071197411003300 1978-07-01 4.2207792207792200 1978-08-01 3.6269430051813500 1978-09-01 3.2051282051282100 1978-10-01 3.1645569620253200 1978-11-01 3.4700315457413100 1978-12-01 3.8034865293185500 1979-01-01 3.8897893030794000 1979-02-01 3.5000000000000000 1979-03-01 3.9473684210526400 1979-04-01 3.4035656401944900 1979-05-01 4.8665620094191600 1979-06-01 5.5900621118012500 1979-07-01 5.2959501557632300 1979-08-01 4.8333333333333400 1979-09-01 5.2795031055900500 1979-10-01 5.9815950920245300 1979-11-01 5.1829268292683100 1979-12-01 5.1908396946564900 1980-01-01 5.7722308892355800 1980-02-01 4.8309178743961200 1980-03-01 4.9050632911392400 1980-04-01 5.6426332288401300 1980-05-01 5.8383233532934200 1980-06-01 5.7352941176470600 1980-07-01 5.1775147928994100 1980-08-01 2.8616852146263900 1980-09-01 5.6047197640118000 1980-10-01 5.7887120115774300 1980-11-01 6.5217391304347700 1980-12-01 6.5312046444122000 1981-01-01 4.5722713864307000 1981-02-01 5.2227342549923400 1981-03-01 4.5248868778280400 1981-04-01 4.1543026706231500 1981-05-01 4.2432814710042300 1981-06-01 3.6161335187760600 1981-07-01 2.3909985935302400 1981-08-01 3.2457496136012400 1981-09-01 4.3296089385474900 1981-10-01 5.1983584131327100 1981-11-01 3.6734693877551000 1981-12-01 3.8147138964577500 1982-01-01 2.9619181946403200 1982-02-01 2.4817518248175200 1982-03-01 2.4531024531024600 1982-04-01 2.1367521367521400 1982-05-01 3.7991858887381300 1982-06-01 3.6241610738255100 1982-07-01 2.3351648351648400 1982-08-01 3.1437125748503000 1982-09-01 2.5435073627844700 1982-10-01 2.8608582574772200 1982-11-01 3.9370078740157500 1982-12-01 3.0183727034120800 1983-01-01 3.1506849315068500 1983-02-01 2.5641025641025500 1983-03-01 2.3943661971831200 1983-04-01 2.5104602510460100 1983-05-01 2.3529411764705900 1983-06-01 1.4248704663212400 1983-07-01 2.6845637583892600 1983-08-01 1.8867924528301900 1983-09-01 2.4804177545691900 1983-10-01 1.5170670037926700 1983-11-01 2.5252525252525300 1983-12-01 2.2929936305732400 1984-01-01 2.2576361221779600 1984-02-01 2.7777777777777800 1984-03-01 2.3383768913342500 1984-04-01 2.7210884353741500 1984-05-01 2.5542784163473700 1984-06-01 2.4265644955300100 1984-07-01 2.2222222222222200 1984-08-01 2.4216524216524200 1984-09-01 1.7834394904458600 1984-10-01 3.4869240348692400 1984-11-01 2.7093596059113300 1984-12-01 3.1133250311332500 1985-01-01 3.1168831168831200 1985-02-01 5.4054054054054100 1985-03-01 6.5860215053763300 1985-04-01 6.8874172185430500 1985-05-01 2.1170610211706300 1985-06-01 2.2443890274314200 1985-07-01 3.9641943734015200 1985-08-01 8.7621696801112600 1985-09-01 2.2528160200250300 1985-10-01 -0.4813477737665330 1985-11-01 0.1199040767385960 1985-12-01 0.6038647342995180 1986-01-01 1.8891687657430700 1986-02-01 2.4358974358974400 1986-03-01 2.3959646910466600 1986-04-01 2.3543990086740900 1986-05-01 2.3170731707317100 1986-06-01 2.3170731707317100 1986-07-01 2.3370233702337200 1986-08-01 2.3017902813299200 1986-09-01 2.0807833537331700 1986-10-01 2.0556227327690500 1986-11-01 1.6766467065868400 1986-12-01 1.8007202881152500 1987-01-01 0.9888751545117440 1987-02-01 1.2515644555694600 1987-03-01 1.3546798029556500 1987-04-01 1.3317191283293100 1987-05-01 1.4302741358760300 1987-06-01 1.4302741358760300 1987-07-01 0.3605769230769100 1987-08-01 1.1250000000000000 1987-09-01 0.8393285371702510 1987-10-01 0.9478672985782000 1987-11-01 0.8244994110718370 1987-12-01 0.9433962264150950 1988-01-01 0.8567931456548360 1988-02-01 0.1236093943139680 1988-03-01 0.3645200486026740 1988-04-01 0.7168458781361880 1988-05-01 1.0575793184488800 1988-06-01 0.9400705052879100 1988-07-01 1.0778443113772600 1988-08-01 0.8652657601977620 1988-09-01 2.1403091557669600 1988-10-01 1.8779342723004600 1988-11-01 2.4532710280373900 1988-12-01 2.4532710280373900 1989-01-01 2.6699029126213500 1989-02-01 2.4691358024691400 1989-03-01 2.5423728813559500 1989-04-01 4.5077105575326300 1989-05-01 4.3023255813953500 1989-06-01 4.5401629802095400 1989-07-01 4.3838862559241600 1989-08-01 4.6568627450980600 1989-09-01 5.4714784633294300 1989-10-01 5.7603686635944800 1989-11-01 5.4732041049030800 1989-12-01 5.3591790193842700 1990-01-01 5.2009456264775500 1990-02-01 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