POPULATION: the most/least populated; the biggest/smallest number of people; the most/least densely populated; the most/fewest people; the number of people/residents/inhabitants
DIFFERENT TYPES OF STH: many kinds of, various categories, a range of, a host of
TOURISTS (to Australia): travelers to Australian, people who travel(led) to Australia, people who go/went to Australia, people who visit/visited Australia.
FUELS (coal, gas, oil, and nuclear to produce energy/power or electricity): The most popular source of energy is/was…..; the most power is/was produced from…..; the most electricity comes/came from….., energy production from….is the highest
DISTANCE: to drive/cover/run a long distance, to drive a longer distance, to cover the longest distance; the distance/space that London train covered was the longest
WATER CONSUMPTION & OIL PRODUCTION: the most water was used/consumed in agricultural sector; agriculture is/was the sector that consumed the most water; water usage in agriculture is/was the highest; the most oil was produced in Europe,
DEATH RATE: the percentage of people who died (of + a disease), the number of deaths (among young people); the mortality rate,
BIRTH RATE: birth rate, fertility rate, the proportion of babies born, the number of infants,
WORKERS: the number of workers in education sector; the number of employees in education domain/field; the number of people who work(ed) in education sector, the most people worked/functioned/operated in service sector.
LEISURE ACTIVITIES: hobby, interest, like, choose, select, vote for, take part in, join in,
SALES: sale = the act of selling things, sales = the number of items sold,
SAVINGS (always plural) = the money that is/was saved
EARNINGS (always plural) = the money that is/was earned
EXPENDITURE: spending on sth = an amount of money that is/was spent on sth = the expenditure on sth = the budge for sth = Noun + expense ; more money