Last year, I read four books.
The reasons for that low number are, I guess, the same as your reasons for reading fewer books than you think you should have read last year: I’ve been finding it harder and harder to concentrate on words, sentences, paragraphs. Let alone chapters. Chapters often have page after page of paragraphs. It just seems such an awful lot of words to concentrate on, on their own, without something else happening. And once you’ve finished one chapter, you have to get through another one. And usually a whole bunch more, before you can say finished, and get to the next. The next book. The next thing. The next possibility. Next next next.