I would wager that we easily have more Bayonets within our military right now than we did back in 1914, or whatever the year in question was.
You would win the wager: in 1916 we had a total of about 140,000 men under arms (including cavalrymen who would have had sabres, rather than bayonets), while now the Marine Corps which still issues bayonets as close melee weapons has 203,000 active duty and 40,000 reservists.