How fast do you count through a deck of cards?

How fast do you count through a deck of cards. Now I carry a deck of cards in my car so I can count through the deck a few times at stop lights. I count through it face up. I usually average right around 18 seconds. I count a deck in under 21 seconds about 99% of the time. And I will count it down in 16 to 17 seconds quite frequently. My fastest time(s) is about 14.7 seconds.

Just curious if this is average, below average or above average.

I'm sure it depends on the count you use. I use the KO count which should probably take slightly longer than the HI-Lo since the Hi-Lo doesn't count 7's.

Thanks for the responses.

Bob