Experimentally derived plasma recombination rate coefficients (black solid line) compared with the present and previous calculated data. The red solid line is the plasma rate coefficients derived from the presently calculated DR rate coefficients, the violet dashed line is the calculated data by Gu (2003), the blue solid line denotes the calculation by Zatsarinny et al. (2006) with the AUTOSTRUCTURE code, the orange stars are the previous recommended DR data (Jacobs et al. 1980), and the green pentagons are the data from the Open-ADAS website.