Google Geocoding API limit

Google Geocoding API (地址轉經緯度或經緯度轉地址) 限制只有 2500 筆 (per ip, per day)
實測大概在 2510-2550 筆查詢後就會被鎖
達到上限後會返回
{
"error_message" : "You have exceeded your daily request quota for this API.",
"results" : [],
"status" : "OVER_QUERY_LIMIT"
}