1550 1650 1750 1850 1950 15,343 15,343 15,405 18,257 21,841 30,857 37,408 67,229 75,396 85,249 106,314 152,212 184,602 199,224 205,892 220,539 248,448 278,415 334,064 363,039 Middle English Early Modern English Later Modern English Old English R2 = 0.9901