i would argue it is indicative, considering most reports and articles are using this measurement
i'm no economist but if money sure isn't spent, surely it is saved or invested?
weirdly Urban Household Savings didn't give any concrete numbers either, only sentiment
but by eyeballing:
2004 q3 (awful formatting)
32.3 percent of the surveyedconsidered consumption (including through borrowing) the “most sensible”choice,
33.4 percent surveyedconsidered "to save more" the most sensible choice,
7.9 percent surveyed considered"to buy stocks or mutual funds
2010
At the current price, interest rate and income level,
45.2 percent of respondents preferred “more investment” (such as purchases of bonds, shares and mutual fund units),
37.6 percent chose “more savings deposits” and
17.3 percent were in favor of “more consumption”.
2011
82.8 percent of respondents preferred to save money, with
39.7 percent went for bond, stock and fund investments as an alternative to deposits and
43.1 percent for deposits. About
17.2 percent were in favour of “more consumption”
2018
26.0% of respondents were in favor of “more consumption”, up 1.3 percentage points from the previous quarter;
44.3% preferred “more savings”, up 0.7 percentage point from the previous quarter;
29.7% tended to make “more investment”,
2019
27.7 percent preferred more consumption, up 1.3 percentage points from the previous quarter;
44.5 percent were in favor of more savings deposits, down 1.0 percentage point quarter on quarter; and
27.8 percent were inclined to make more investment, down 0.4
2023
21.9 percent preferred more consumption, down 2.6 percentage points quarter on quarter;
62.2 percent were in favor of more savings deposits, up 4.2 percentage points quarter on quarter; and
15.9 percent were inclined to make more investment,
2024
24.4 percent preferred more consumption, down 0.8 per- centage points quarter on quarter;
64.0 percent were in favor of more savings deposits, up 2.5 percentage points quarter on quarter; and
11.6 percent were inclined to make more investment,
2025
19.2 percent preferred more consumption, down 4.1 per- centage points quarter on quarter;
62.3 percent were in favor of more savings deposits, down 1.5 percentage points quarter on quarter; and
18.5 percent were inclined to make more investments,
TLDR
i suppose you have a point, though major shift seems to be from investment to saving
though no distinction between the 2 is cites and only sentiments are track i would take it with a grain of salt