How many instruments are in the percussion section of an orchestra?

40-100 players consisting of: 18 1st violins 14 2nd violins 12 violas 12 cellos, 8 double basses 4 flutes (1st Flute also plays piccolo) 3 oboes (1st oboe also plays engish horn) 3 clarinets 1 Bass Clarinet 1 contrabass Clarinet 2 bassoons 1 contrabassoon 4-8 horns 2-4 trumpets 2-3 trombones 1 tuba 6 percussion (tuned and untuned) 1 tympani 1-2 harps