No, not by a long shot in what I have recorded. I only have 9 Sandmans in Jasmine, and 4 x non-Sandman.

The most common I have are Flamenco Red (14 plus a non-Sandman van), Palais White (14 plus 4 x non-Sandman) and Atlantis blue (21 Sandmans). Valencia Orange was only available until the end of July 1978 yet I have 11 of those. I also have 11 Windsor blue (plus a Kingswood ute too) and 11 Caribbean Turquoise (plus a Kingswood van). The rest are all single digit, some colours I haven't even got one recorded!

ALL Sandman colours, Absinth Yellow is probably the most common recorded of the lot, I have 52 plus 9 non-Sandmans. This would be followed by Mandarin Red with 36 and 4 x non Sandman. Deauville Blue with 28 plus 2 non-Sandman. Cotillion White with 22 Sandmans plus 11 non-Sandmans. There are a couple amongst those counted here as Sandmans which have ? next to them, so possibly subtract 1-3 off these overall colours and add 1-3 to the non-Sandmans.