This is the 17661st most frequent Russian word.
увеличило
"Increased" or "enlarged."
The word 'увеличило' is used as the past tense form of the verb 'увеличить', meaning 'to increase', denoting that a specific subject (last year) caused an increase in the object (number of tourists).
Прошлый год увеличило количество туристов в городе.
Last year increased the number of tourists in the city.
Here 'увеличило' indicates that the subject (this technology) was responsible for an increase in the object's attribute (data processing speed).
Эта технология увеличило скорость обработки данных.
This technology increased the speed of data processing.
In this sentence, 'увеличило' is used to show that an action (development of infrastructure) led to a positive change (increased inflow of investments).