Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Lok Sabha | Members of Parliament | Party Won | Winner's % votes | Trailing Party | Trailing Party % votes |
| --- | --- | --- | --- | --- | --- | --- |
| 1951.0 | 1st Lok Sabha | Mukund Lal Agrawal | Indian National Congress | 43.11% | Socialist Party | 22.58% |
| 1957.0 | 2nd Lok Sabha | Mohan Swarup | Praja Socialist Party | 50.54% | Indian National Congress | 34.86% |
| 1962.0 | 3rd Lok Sabha | Mohan Swarup | Praja Socialist Party | 29.62% | Indian National Congress | 27.42% |
| 1967.0 | 4th Lok Sabha | Mohan Swarup | Praja Socialist Party | 28.24% | Indian National Congress | 24.26% |
| 1971.0 | 5th Lok Sabha | Mohan Swarup | Indian National Congress | 38.96% | Indian National Organization | 24.74% |
| 1977.0 | 6th Lok Sabha | Md Shamsul Hasan Khan | Bharatiya Lok Dal | 71.32% | Indian National Congress | 19.73% |
| 1980.0 | 7th Lok Sabha | Harish Kumar Gangawar | Indian National Congress | 40.42% | Janata Party | 25.34% |
| 1984.0 | 8th Lok Sabha | Bhanu Pratap Singh | Indian National Congress | 63.84% | Bharatiya Lok Dal | 23.39% |
| 1989.0 | 9th Lok Sabha | Maneka Gandhi | Janata Dal | 57.34% | Indian National Congress | 29.37% |
| 1991.0 | 10th Lok Sabha | Parshuram Gangwar | Bharatiya Janta Party | 30.86% | Janata Dal | 29.40% |
| 1996.0 | 11th Lok Sabha | Maneka Gandhi | Janata Dal | 59.83% | Bharatiya Janta Party | 17.01% |
| 1998.0 | 12th Lok Sabha | Maneka Gandhi | Independent | 55.99% | Bahujan Samaj Party | 22.60% |
| 1999.0 | 13th Lok Sabha | Maneka Gandhi | Independent | 57.94% | Bahujan Samaj Party | 25.88% |
| 2004.0 | 14th Lok Sabha | Maneka Gandhi | Bharatiya Janta Party | 37.75% | Samajwadi Party | 22.58% |
| 2009.0 | 15th Lok Sabha | Feroze Varun Gandhi | Bharatiya Janta Party | 49.79% | Indian National Congress | 16.38% |
Question:
What is the lowest Year, when Lok Sabha is "4th Lok Sabha"?
Answer:
1967.0