the number of
The number of serious storms to affect New England rose to 21 this year
the amount of
The amount of natural gas produced this year increased sharply.
more than
There was more rainfall in April than in May.
fewer than
The chart indicates that fewer people visited this website in 2012 than in 2011.
less than
The factory produced less pollution during 2010 than in the previous year.
(about) the same as
The amount of time it takes to complete task A is (about) the same as the amount of time it takes to complete task B.
To make these expressions stronger, you can use many, much, fa r: many more than, much more than, far less than.
To make these expressions weaker, you can use slightly or a little: slightly more than, a little less than.
twice as many as
There were nearly twice as many accidents at the factory this year as last year
twice as much as
According to the chart, there was about twice as much coal mined in this county in the 1940s as in the 1990s.
(nearly/almost) doubled
The amount of milk produced at this dairy farm nearly doubled over the five year period.
The number of runners in the race almost doubled between 2000 and 2015.
half as many as
There were only about half as many applications for jobs received in January as there had been in July.
half as much as
A dollar in 1980 was worth around half as much as it had been in 1967.
amount + times + as many as
There were, on average, about three times as many pages in newspapers in country A as in country B.
amount + times + as much as
There was around four times as much traffic in city X as in city Y.