Wiljali is an alternate name for Wilyakali. See and use Wilyakali D16 per Oates (1975:184).
Speaker numbers were measured differently across the censuses and various other sources listed in AUSTLANG. You are encouraged to refer to the sources.
Speaker numbers for ‘NILS 2004’ and ‘2005 estimate’ come from 'Table F.3: Numbers of speakers of Australian Indigenous languages (various surveys)' in 'Appendix F NILS endangerment and absolute number results' in McConvell, Marmion and McNicol 2005, pages 198-230 (PDF, 2.5MB).
Hercus, Luise. 1982. The Bagandji language: Pacific Linguistics B6.7 Canberra: Pacific Linguistics.
Hercus, Luise. 1993 Paakantyi dictionary. Canberra: Luise Hercus.