concession-based shop-within-shops .in addition , we sell our products online through various third-party digital partner commerce sites .in asia , our wholesale business is comprised primarily of sales to department stores , with related products distributed through shop-within-shops .no operating segments were aggregated to form our reportable segments .in addition to these reportable segments , we also have other non-reportable segments , representing approximately 7% ( 7 % ) of our fiscal 2018 net revenues , which primarily consist of ( i ) sales of club monaco branded products made through our retail businesses in the u.s. , canada , and europe , and our licensing alliances in europe and asia , ( ii ) sales of ralph lauren branded products made through our wholesale business in latin america , and ( iii ) royalty revenues earned through our global licensing alliances , excluding club monaco .this segment structure is consistent with how we establish our overall business strategy , allocate resources , and assess performance of our company .approximately 45% ( 45 % ) of our fiscal 2018 net revenues were earned outside of the u.s .see note 19 to the accompanying consolidated financial statements for a summary of net revenues and operating income by segment , as well as net revenues and long-lived assets by geographic location .our wholesale business our wholesale business sells our products globally to leading upscale and certain mid-tier department stores , specialty stores , and golf and pro shops .we have continued to focus on elevating our brand by improving in-store product assortment and presentation , as well as full-price sell-throughs to consumers .as of the end of fiscal 2018 , our wholesale products were sold through over 12000 doors worldwide , with the majority in specialty stores .our products are also increasingly being sold through the digital commerce sites of many of our wholesale customers .the primary product offerings sold through our wholesale channels of distribution include apparel , accessories , and home furnishings .our luxury brands , including ralph lauren collection and ralph lauren purple label , are distributed worldwide through a limited number of premier fashion retailers .in north america , our wholesale business is comprised primarily of sales to department stores , and to a lesser extent , specialty stores .in europe , our wholesale business is comprised of a varying mix of sales to both department stores and specialty stores , depending on the country .in asia , our wholesale business is comprised primarily of sales to department stores , with related products distributed through shop-within-shops .we also distribute our wholesale products to certain licensed stores operated by our partners in latin america , asia , europe , and the middle east .we sell the majority of our excess and out-of-season products through secondary distribution channels worldwide , including our retail factory stores .worldwide wholesale distribution channels the following table presents by segment the number of wholesale doors in our primary channels of distribution as of march 31 , 2018 and april 1 , march 31 , april 1 .
[['', 'march 312018', 'april 12017'], ['north america', '6848', '7018'], ['europe', '4928', '5690'], ['asia', '341', '187'], ['other non-reportable segments', '109', '171'], ['total', '12226', '13066']]
we have three key wholesale customers that generate significant sales volume .during fiscal 2018 , sales to our largest wholesale customer , macy's , inc .( "macy's" ) , accounted for approximately 8% ( 8 % ) of our total net revenues .further , during fiscal 2018 , sales to our three largest wholesale customers , including macy's , accounted for approximately 19% ( 19 % ) of our total net revenues , as compared to approximately 21% ( 21 % ) during fiscal 2017 .substantially all sales to our three largest wholesale customers related to our north america segment .our products are sold primarily by our own sales forces .our wholesale business maintains its primary showrooms in new york city .in addition , we maintain regional showrooms in bologna , geneva , london , madrid , munich , panama , paris , and stockholm. .

Question: what percentage of wholesale distribution channels are due to europe as of march 31 , 2018?
Answer: 40%