I remember seeing a picture of all the ships at anchor
in the Singapore Straits during the crash. The place
was chocked full. The number of ships at anchor is
surely an index of shipping. Also include the total
tonnage at anchor. In the absence of a index a time
laps video would be neat. Maybe this is too simple
when charts allow one to draw lines and obtain the
sought result. Your comments?
BTW, You REALLY know evrything there is to know about
this Baltic stuff.