Until today I've had the opportunity to observe and image 79 different comets.
The table below lists the individual observations of each of those comets.
Number of comets observed visually: 34
Number of visual observations: 165
Number of comets imaged: 60
Number of ccd observations: 115
Terminology:
magnitude: brightness estimate of the comet
coma: size estimate of the comet's coma, measured in arcminutes
condensation: degree of condensation (0=completely diffuse, 9=completely stellar)