How come UK and Germany Keep adding billions to their economy despite not growing much ?

Japan is losing GDP, UK and Germany have high inflation relative to their growth. Most of their Quarter economic growths are stagnant or recessive, How come a country can keep adding GDP despite no or very less real growth ? Is it cause of currency ? if so why and how it works ?

India keeps growing at 6-8% every year interms of real GDP and 9-13% to their nominal GDP. while adding 300-400$ billion usd to their economy every year. but they add less relative to their growth compared to UK and Germany who add just as much with very little growth.

China did the same in 2007-2010 where it doubled its gdp from 3$ Trillion USD to 6$ Trillion USD, which type of growth is simply impossible even if its growing at 20% every year. So it had to do with yuan.

So is this type of growth UK/Germany is going through real or just inflation ?