Обрезкова, А.А. Проблемы и перспективы НАФТА на современном этапе [Электронный ресурс] / А.А. Обрезкова, В.П. Тростинская, Г.М. Толстобров. — (Секция "Экономическая теория"). — Электрон. текстовые дан. (1 файл : 85 Кб) // Загл. с титул. экрана. — Электрон. версия печ. публикации. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Adobe Acrobat Reader 4.0. — <URL:http://elib.spbstu.ru/dl/004513.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 1 | 4 | 0 | 7 | 0 | 11 |
| Quarter 2 | 6 | 0 | 2 | 0 | 8 | |
| Quarter 3 | 4 | 0 | 2 | 0 | 6 | |
| Quarter 4 | 18 | 0 | 19 | 0 | 37 | |
| Year 2013 | Quarter 1 | 14 | 0 | 13 | 0 | 27 |
| Quarter 2 | 67 | 1 | 22 | 0 | 90 | |
| Quarter 3 | 42 | 0 | 18 | 0 | 60 | |
| Quarter 4 | 80 | 1 | 16 | 0 | 97 | |
| Year 2014 | Quarter 1 | 80 | 0 | 19 | 0 | 99 |
| Quarter 2 | 60 | 0 | 15 | 0 | 75 | |
| Quarter 3 | 42 | 0 | 8 | 0 | 50 | |
| Quarter 4 | 84 | 0 | 13 | 0 | 97 | |
| Year 2015 | Quarter 1 | 77 | 1 | 3 | 0 | 81 |
| Quarter 2 | 70 | 0 | 14 | 0 | 84 | |
| Quarter 3 | 29 | 0 | 7 | 0 | 36 | |
| Quarter 4 | 56 | 0 | 8 | 0 | 64 | |
| Year 2016 | Quarter 1 | 76 | 0 | 11 | 0 | 87 |
| Quarter 2 | 47 | 1 | 14 | 0 | 62 | |
| Quarter 3 | 24 | 0 | 9 | 0 | 33 | |
| Quarter 4 | 81 | 1 | 15 | 0 | 97 | |
| Year 2017 | Quarter 1 | 41 | 0 | 26 | 0 | 67 |
| Quarter 2 | 43 | 0 | 26 | 0 | 69 | |
| Quarter 3 | 27 | 0 | 10 | 0 | 37 | |
| Quarter 4 | 19 | 0 | 7 | 0 | 26 | |
| Year 2018 | Quarter 1 | 11 | 0 | 11 | 0 | 22 |
| Quarter 2 | 17 | 0 | 13 | 0 | 30 | |
| Quarter 3 | 19 | 0 | 11 | 0 | 30 | |
| Quarter 4 | 11 | 0 | 11 | 0 | 22 | |
| Year 2019 | Quarter 1 | 10 | 0 | 8 | 0 | 18 |
| Quarter 2 | 8 | 0 | 17 | 0 | 25 | |
| Quarter 3 | 7 | 0 | 18 | 0 | 25 | |
| Quarter 4 | 2 | 0 | 96 | 0 | 98 | |
| Year 2020 | Quarter 1 | 12 | 0 | 39 | 0 | 51 |
| Quarter 2 | 17 | 0 | 0 | 0 | 17 | |
| Quarter 3 | 17 | 0 | 0 | 0 | 17 | |
| Quarter 4 | 19 | 0 | 16 | 0 | 35 | |
| Year 2021 | Quarter 1 | 19 | 0 | 16 | 0 | 35 |
| Quarter 2 | 12 | 0 | 13 | 0 | 25 | |
| Quarter 3 | 16 | 0 | 17 | 0 | 33 | |
| Quarter 4 | 8 | 0 | 15 | 0 | 23 | |
| Year 2022 | Quarter 1 | 10 | 0 | 15 | 0 | 25 |
| Quarter 2 | 8 | 0 | 12 | 0 | 20 | |
| Quarter 3 | 13 | 0 | 8 | 0 | 21 | |
| Quarter 4 | 12 | 0 | 9 | 0 | 21 | |
| Year 2023 | Quarter 1 | 9 | 0 | 21 | 0 | 30 |
| Quarter 2 | 9 | 0 | 18 | 0 | 27 | |
| Quarter 3 | 3 | 0 | 7 | 0 | 10 | |
| Quarter 4 | 13 | 0 | 10 | 0 | 23 | |
| Year 2024 | Quarter 1 | 5 | 0 | 8 | 0 | 13 |
| Quarter 2 | 12 | 0 | 17 | 0 | 29 | |
| Quarter 3 | 10 | 0 | 14 | 0 | 24 | |
| Total | 1,400 | 5 | 744 | 0 | 2,149 | |