The data for the years before 2005, include construction starts of housing units in settlements in the Gaza Strip.

For the tenders in East Jerusalem see here
Tenders are calls for proposals issued by the government for the construction of housing units. After selecting the winning bid, construction and marketing can begin by the contractor. Only 13 settlements require the process of tenders; in all other settlements tenders are not required for construction to begin.

Number of housing units in plans for West Bank settlements that passed one of the stages of the planning process (approval by the MOD, approval for depositing, depositing, approval for validation, validation).
In cases where a plan passes several stages in one year, the plan in counted only once; when the same plan passes another stage in a different year, the plan is counted also at the other year’s count.
East Jerusalem excluded.
Source: Peace Now’s count based on official publications