@Reluctant_Sir
For Christians, I am more familiar with three times during their lives, not three times a year...
Baptism, Marriage and Burial.
Was going to say the same. In my limited experience those who do attend any services more frequently than just for those occasions, own or extended family related, do attend them more frequently than three times a year, but on more weekly-ish or perhaps monthly basis.
I knew of a couple guys who tactically converted to Islam while in Mujahedeen captivity during Soviet invasion in Afghanistan, just to abandon and "wash off" the forced faith upon returning home.
That we do have a national cultural ritual for washing off forced faiths says something about our history here. Since Latvian-ism is a quasi-religious practice in own right, large majority (but not all, there's a small
percentage of cultists and zealots) of our nominal Christians are actually dual faiths holding (a practice that is allowed by the national tradition, regardless of the prescriptions of the public "Sunday" faith), but more often purely performative on both.
Hence, Latvian Muslim is an oxymoron by definition, since practicing Muslim is a cult according to my definitions, and very incompatible with the national tradition, but I have read that we have a group attempting that, somehow. Then, I know a girl who went in Hare Krishna temple, married a genuine Indian priest, and come back out with him in tow, now speaking Latvian as do their children, although they now live in Sweden where they have a shop of some related health and wellness stuff... but I guess that's a bit off topic.