The amount of municipal waste generated in Wales has gradually decreased since the early 2000s, with a 2% decrease between 2018-19 and 2019-20.
Mae faint o wastraff trefol a gynhyrchir yng Nghymru wedi gostwng yn raddol ers dechrau’r 2000au, gyda gostyngiad o 2% rhwng 2018-19 a 2019-20.