Companies are adopting cloud architectures at such a rapid rate that cloud traffic will account for 92 percent of the globe’s total data center traffic by 2020, according to a new report from Cisco Systems Inc.

The networking giant predicts in its latest Global Cloud Index report that cloud traffic will increase by 3.7 times, from 3.9 zettabytes in 2015 to 14.1 zettabytes by the end of the decade. A zettabyte is a trillion gigabytes.

“The IT industry has taken cloud computing from an emerging technology to an essential scalable and flexible networking solution. With large global cloud deployments, operators are optimizing their data center strategies to meet the growing needs of businesses and consumers,” Doug Webster, vice president of service provider marketing for Cisco, said in a statement. “We anticipate all types of data center operators continuing to invest in cloud-based innovations that streamline infrastructures and help them more profitably deliver web-based services to a wide range of end users.”

By the end of the decade, Cisco reckons that business workloads will be the most dominant data center applications, though their overall workload share will drop from 79 percent to 72 percent. Within that sector, business workload subsets of IoT, analytics and database workloads will grow the fastest, accounting for 22 percent of all business workloads by 2020.

Consumer workloads are smaller, but also growing much faster, Cisco said. They will account for 28 percent of all data center workloads by 2020, with streaming services like Netflix and social media seeing the biggest growth.

Meanwhile, by 2020, some 2.3 billion people in the world will be using some kind of personal cloud storage, Cisco said. That compares with 1.3 billion who used personal cloud storage in 2015.

Regarding the main types of cloud, Cisco said that public cloud was growing much faster than private cloud. As a result, some 68 percent of cloud workloads will be in public cloud data centers by 2020, compared with 32 percent in private cloud data centers.

Cisco also looked at the impact of hyperscale data centers in the next few years, saying it expects to see a surge of traffic in the next five years. Hyperscale data center traffic will quintuple by 2020, when hyperscale infrastructure supporting 53 percent of all data center traffic.