[Note 1] 27% of people who were asked said 'Don't know' to the question about public transport and were excluded from the analysis.
[Nodyn 1] ‘Ddim yn gwybod’ oedd ateb 27% o’r bobl a holwyd i’r cwestiwn am drafnidiaeth gyhoeddus ac ni chawsant eu cynnwys yn y dadansoddiad.