Private-equity firms completed 71 Japanese investments in the first half of this year, up from 60 in the same period the previous year, though the overall value nearly halved to $1.56 billion from $2.99 billion, according to S&P Capital IQ, a data and research provider.
Analyze the relationship between 'halved' and 'half' within the context of the input sentence.
Options: product/material produced, owned by, stock exchange, distribution format