Usage of the Past Perfect Continuous Tense
Please help me about usage of past perfect continuous tense with the upward/downward trends.
İs it ok to use it like below?
1) temperatures had been decreasing 4 celsius approximately since hottest day of the week
2) temperatures was decreasing 4 celsius approximately as of the hottest day of the week
3) The total amount of bike usage had been decreasing between 1960 and 2000.
4) or should ı use "was on decrease" with 3