Patriots Parade Crowd Seemed Smaller This Year

I not an expert on crowd counts but it just seemed to me the crowd was smaller this year. Does anyone measure this stuff?

When I started my walk home the crowd had all but disappeared and that was at 12:55 PM.

So what gives?

Tides:
12:44 AM 1.49 feet Low Tide
04:24 AM Moonrise
06:12 AM Sunrise
06:53 AM 5.66 feet High Tide
01:44 PM -0.80 feet Low Tide
03:35 PM Moonset
05:52 PM Sunset
08:00 PM 4.38 feet High Tide