skrypt.js

const _ = require('lodash');

function bm() {
    var u = 0, v = 0;
    while(u === 0) u = Math.random(); //Converting [0,1) to (0,1)
    while(v === 0) v = Math.random();
    return Math.sqrt( -2.0 * Math.log( u ) ) * Math.cos( 2.0 * Math.PI * v );
}

console.log(
  _(_.range(1900, 2020))
    .map(x => [x, (25 + 3 * bm() + (x-1900)/100)])
    .sortBy(1)
    .reverse()
    .slice(0,20)
    .map(0)
    .filter(x => x < 2000)
    .value()
    .length
  )