CountAllNumbersInAWikipediaTableCell

let t = document.querySelector("table tbody")
let tr = t.querySelectorAll("tr td[align]=right")
arr = []
tr.forEach(function(d){
    if(d['align'] === 'right'){
        let countString = d['innerHTML']
        if(typeof countString === 'string'){
        let split = countString.split(",")
        let joined = split.join("")
        let count = Number.parseFloat(joined)
        arr.push(count)
        }
    }
})

arr.reduce((a,b)=>a+b,0)