March 9 (Reuters) - The Baltic Exchange's main sea freight index fell on Monday, breaking a 20-day winning streak, as weak demand for capesize and panamax vessels offset strong rates for the supramax segment.
* The Baltic index, which tracks rates for capesize, panamax and supramax vessels that ferry dry bulk commodities, fell 1 point, or 0.2%, to 616.
* The capesize index fell 60 points to -372.
* Average daily earnings for capesizes, which typically transport 170,000 tonne-180,000 tonne cargoes including iron ore and coal, dropped by $157 to $2,385.
* The panamax index fell 1 point, or 0.1%, to 1,067, marking its first fall in 23 sessions.
* Average daily earnings for panamaxes, which usually carry coal or grain cargoes of about 60,000 tonnes-70,000 tonnes, declined $3 to $9,607.
* The supramax index rose 16 points to 704. (Reporting by Anjishnu Mondal in Bengaluru; Editing by Maju Samuel)