How often do these supply ships go up there? I assume it isn't the same one.
Depends.
This is the 9th from JAXA the Japanese space agency.
ROSCOSMOS aim to send up 3 Progress supply craft per year, plus 2 Soyuz crew missions.
ESA launched 5 of it's Autonomous Transfer Vehicle craft to the station, all launched on Arianne 5 rockets from French Guyana. With the conclusion of the 5 launches, they have no further launch plans to Station. The ATV lives on as part of the logistics module on the new NASA Artemis project to return to the moon.
NASA has the CCS contract program, which has missions from Space X (dragon module, launched on the Falcon 9, now Dragon 2, also launched on Falcon 9), and Cygnus, which comes from Orbital Sciences Corporation (OSC), and is launched by United Launch Alliance (ULA) on an Atlas 5 rocket.
The exact number of each varies.
Then there comes the more complicated one. There is also the Commercial Crew Program, which involves Boeing and Space X. Space X have their Crewed Dragon (Human rated version of Dragon 2), and Boeing have their CST-100. As yet neither have flown with a crew on board. But that's about to change.
At 2033 UTC/2133BST/2233CEST on 27th May 2020, a Falcon 9 from LC-39A will launch carrying 2 NASA astronauts. It is due to dock with Station at 1529UTC/1629BST/1729CEST on the 28th. This will mark the first time Astronauts have flown to the space station other than from Baikenour for 9 years, since the the shuttle was retired in 2011. It's also the first time NASA have launched only 2 crew on a mission since STS-4 in June 1982.
Boeing's CST-100 kinda fucked up on it's test flight in 2019, meaning they are losing this race, and don't expect to launch humans until 2021.
Launches to the station are more common than you may think, and with a variety of different craft.
Then there are the various launches that don't involve Station. Including the race to infect the planet with Kessler syndrome from the likes of SpaceX and One Space...
Space is busy right now...
J