In contrast to previous annual reports, the RCM
's 2017 annual report does not have the category ''coinage dated 2017'' for coins minted in 2017.
The 150th anniversary mintage is indeed rather low: 10 Million for Loonie and Toonie, 20 Million for 5c, 10c, 25c.
However, regular designs were also minted during 2017: e.g. 5c: 106,68 Mill., 10c 199,925 Mill., 110,7 Million Quarters. These coins (plus the additional Loonies and Toonies) most likely were still dated 2016. Unfortunately, as long as the RCM
doesn't include the ''coinage dated'' category back into its annual reports we won't know for sure...
Charlton probably lumped the figures together.