To celebrate the birth of our country, Americans eat a whole lot of hamburgers and hotdogs. And no Fourth of July party is complete without loads of other red, white, and blue picnic paraphernalia. But according to the National Retail Federation and Prosper Insight & Analytics, consumers are planning spending less overall this year than last year. Consumers will spend about $6.9 billion, down from $7.1 billion in 2017. The decrease is attributed to the holiday falling on a Wednesday. But patriotism is still high. Despite the decrease, this is still the second-highest amount reported in the history of the survey and the highest per-person spending ever. Nearly 153 million Americans are planning a cookout or a picnic. Average spending per person is reportedly $75.35 — up from $73.42 in 2017. More than 216 million Americans plan to observe the holiday in some way — down from 219 last year. About 31 million Americans…