This list includes lexical decision times for English words, for which two groups of British participants each responded to monosyllabic and disyllabic words.
Keuleers, Emmanuel, Paula Lacey, Kathleen Rastle & Marc Brysbaert. 2012. The British Lexicon Project: Lexical decision data for 28,730 monosyllabic and disyllabic English words. Behavior Research Methods 44(1). 287-304.