The concept of the Internet of Things (IoT) is a widely applicable set

Statistical Indicators of the IoT Concept Application

1. Trend Analysis for the Overall Application of the IoT Concept

The number of IoT devices has been steadily increasing over the last decade. The exact number of u-devices and growth rate varies depending on the research. According to [22], approximately 20.5 billion IoT devices are projected by the end of 2020, while research [23] predicts approximately 30.7 billion IoT devices by the end of the same year and 75 billion IoT devices by 2025, as shown in Fig. 3.
According to Ericsson’s global statistics, which refer to the representation of a par- ticular category of connected devices, IoT devices’ dominance is observed in relation to the hitherto dominant mobile devices. Figure 4 shows the number of connected devices by categories for the period from 2015 to 2022. According to forecasts, IoT devices’ annual growth rate (CAGR) is expected to be 23% from 2016 to 2022 [24].


₈₀ 75.44

Number of devices (billions)
70
60
50
40
30
20
10
0
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Year
Fig. 3. Prediction of the total number of IoT devices by 2025 (globally) [23]

2022

1.3

8.6

1.7 16


2.1

²⁰²¹ 1.32
²⁰²⁰ 1.34

Year
²⁰¹⁹ 1.38
8.5
8.4
8.2
1.7
1.69
1.68
14.2
12.4
10.6

1.24
1.52

1.8

2018
2017
2016
1.4
1.4
1.4
7.8
7.4
7.3
1.65
1.6
1.6
7
5.2
8.8
0.4
0.68
0.96

0 5 10 15 20 25 30 35
Number of IoT devices (billions)
Landlines Mobile phones
Conventional devices (PC / laptop / tablet) Narrow coverage IoT Wide coverage IoT