The figures show nearly 1.13 million tickets were sold in the period under review compared to 1.25 million in the same period last year.
Economy-class passengers will also benefit from upgrades, including four charging stations per seating arrangement and dining cars offering various beverages and food options.
The Premium Class Coaches offer privacy and exclusivity, being segregated from other compartments.
The stations include Mlolongo, Kitengela, Lukenya, Mutindwa, Kariobangi, Kenyatta University, Gitambaya (Ruiru), Aviation, Kibera, Satellite, Mutuini, Thogoto and Gitaru.
The Kenya Railways 2023–2027 Strategic Plan, which was launched last Friday, details the construction of three new lines covering 45.9 kilometres.
The corporation said the suspension has been occasioned by the ongoing heavy rains that have caused flooding in Nairobi and its environs.
However, the Limuru and Ruiru routes will remain suspended due to ongoing repair works on the railway lines following heavy rains.
Kenya Railways has offered to extend the validity of tickets, while the Modern Coast Express bus says journeys can be rescheduled.
In an alert, the Kenya Meteorological Department (Met) said the rains will continue over the next seven days in various parts of the country.
The auditor-general says taxpayers risk losing land worth Sh15.17 billion that was sold parcels to private developers.
Once complete, the link will enable passengers to travel between Mombasa Central Railway station at the CBD and Mombasa Terminus in Miritini with ease.
This is the first time new wagons have been added since the launch of the SGR in May 2017.
The state-owned rail company said the rains had affected normal train operations, including cargo transfers, loading as well as offloading activities at the Port of Mombasa.
Kenya Railways said the increase has been necessitated by changes in the energy and petroleum sector where prices of fuel have significantly increased affecting the cost of its operations.