Until January 2016, 52% of users in North America accessed social media through mobile when the global mobile social penetration rate was 27%.[21] The report in 2017 showed that around 1 billion users will visit Facebook via mobile devices and during this year, the US market plays a significant role with nearly 80% of Facebook users using mobile devices to access their accounts. Facebook mobile advertising revenue account for 10 billion dollars and occupy for 74% of revenue in total. It shows that by 2018, more than 75% of the Facebook users worldwide will access the service via their mobile phones.[22]