Table 2. Breakdown of different sources of APC payment/charges by discipline.

APCs in US Dollars.

Publisher	Mean	N	SD
De Gruyter	1,356.00	5	309.46
Elsevier	1,950.00	7	485.63
Nature Publishing Group	5,200.00	1
Oxford University Press	2,163.33	3	625.81
Springer	1,380.46	13	372.11
Tailor & Francis	1,031.67	3	451.12
Wiley	2,408.00	9	550.63
Total	1,825.20	41	829.68

Notes.

APCs reported in US dollars.